diff --git a/README.html b/README.html
index f8d336e..2a6c5f3 100644
--- a/README.html
+++ b/README.html
@@ -196,36 +196,36 @@
 <h2>Table of Contents</h2>
 <div id="text-table-of-contents">
 <ul>
-<li><a href="#org6cd39c3">1. Overview</a>
+<li><a href="#org271406f">1. Overview</a>
 <ul>
-<li><a href="#org1a056b3">1.1. Description</a></li>
-<li><a href="#org14cefd6">1.2. Requirements</a></li>
+<li><a href="#org57b436e">1.1. Description</a></li>
+<li><a href="#orgf636bc6">1.2. Requirements</a></li>
 </ul>
 </li>
-<li><a href="#org1fef36c">2. Quotations</a>
+<li><a href="#org2d10181">2. Quotations</a>
 <ul>
-<li><a href="#org568c524">2.1. About Bigblow</a></li>
-<li><a href="#orgd35cd17">2.2. About ReadTheOrg</a></li>
+<li><a href="#orgf9cffb1">2.1. About Bigblow</a></li>
+<li><a href="#org1e8dad7">2.2. About ReadTheOrg</a></li>
 </ul>
 </li>
-<li><a href="#org5461123">3. Gallery</a>
+<li><a href="#org8d5591f">3. Gallery</a>
 <ul>
-<li><a href="#orgf5a7ff1">3.1. Bigblow</a></li>
-<li><a href="#org4059947">3.2. ReadTheOrg</a></li>
+<li><a href="#org76921a5">3.1. Bigblow</a></li>
+<li><a href="#orga5730a0">3.2. ReadTheOrg</a></li>
 </ul>
 </li>
-<li><a href="#org257eb0b">4. Demo</a></li>
-<li><a href="#org6be6bfe">5. Using a theme</a></li>
-<li><a href="#org5d40f7e">6. Customizing a theme</a></li>
-<li><a href="#orga58a918">7. Contributing</a>
+<li><a href="#org38cce59">4. Demo</a></li>
+<li><a href="#orgf6a8718">5. Using a theme</a></li>
+<li><a href="#org1db930f">6. Customizing a theme</a></li>
+<li><a href="#orgb9bfd09">7. Contributing</a>
 <ul>
-<li><a href="#org3437b91">7.1. Issues</a></li>
-<li><a href="#org917e168">7.2. Patches</a></li>
-<li><a href="#org0c6ec62">7.3. Donations</a></li>
-<li><a href="#org31cd7fe">7.4. Follow me</a></li>
+<li><a href="#org584ceea">7.1. Issues</a></li>
+<li><a href="#org9afa6ad">7.2. Patches</a></li>
+<li><a href="#orgedb6193">7.3. Donations</a></li>
+<li><a href="#orgafa81e0">7.4. Follow me</a></li>
 </ul>
 </li>
-<li><a href="#org8c77008">8. License</a></li>
+<li><a href="#org0006d60">8. License</a></li>
 </ul>
 </div>
 </div>
@@ -236,12 +236,12 @@
 <img src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" alt="btn_donate_LG.gif" />
 </a>
 
-<div id="outline-container-org6cd39c3" class="outline-2">
-<h2 id="org6cd39c3"><span class="section-number-2">1</span> Overview</h2>
+<div id="outline-container-org271406f" class="outline-2">
+<h2 id="org271406f"><span class="section-number-2">1</span> Overview</h2>
 <div class="outline-text-2" id="text-1">
 </div>
-<div id="outline-container-org1a056b3" class="outline-3">
-<h3 id="org1a056b3"><span class="section-number-3">1.1</span> Description</h3>
+<div id="outline-container-org57b436e" class="outline-3">
+<h3 id="org57b436e"><span class="section-number-3">1.1</span> Description</h3>
 <div class="outline-text-3" id="text-1-1">
 <p>
 Though you can easily override CSS stylesheets and add your own HTML themes, we
@@ -267,8 +267,8 @@ Follow <a href="https://twitter.com/f_niessen">f_niessen</a> on Twitter for upda
 </div>
 </div>
 
-<div id="outline-container-org14cefd6" class="outline-3">
-<h3 id="org14cefd6"><span class="section-number-3">1.2</span> Requirements</h3>
+<div id="outline-container-orgf636bc6" class="outline-3">
+<h3 id="orgf636bc6"><span class="section-number-3">1.2</span> Requirements</h3>
 <div class="outline-text-3" id="text-1-2">
 <p>
 Org mode version 8 (or later) is required.
@@ -281,12 +281,12 @@ If such a version is not bundled with your Emacs, install one from ELPA.
 </div>
 </div>
 
-<div id="outline-container-org1fef36c" class="outline-2">
-<h2 id="org1fef36c"><span class="section-number-2">2</span> Quotations</h2>
+<div id="outline-container-org2d10181" class="outline-2">
+<h2 id="org2d10181"><span class="section-number-2">2</span> Quotations</h2>
 <div class="outline-text-2" id="text-2">
 </div>
-<div id="outline-container-org568c524" class="outline-3">
-<h3 id="org568c524"><span class="section-number-3">2.1</span> About Bigblow</h3>
+<div id="outline-container-orgf9cffb1" class="outline-3">
+<h3 id="orgf9cffb1"><span class="section-number-3">2.1</span> About Bigblow</h3>
 <div class="outline-text-3" id="text-2-1">
 <p>
 &ldquo;Very very nice, I enjoy it a lot.&rdquo; <br />
@@ -327,8 +327,8 @@ wonderful package!&rdquo; <br />
 </div>
 </div>
 
-<div id="outline-container-orgd35cd17" class="outline-3">
-<h3 id="orgd35cd17"><span class="section-number-3">2.2</span> About ReadTheOrg</h3>
+<div id="outline-container-org1e8dad7" class="outline-3">
+<h3 id="org1e8dad7"><span class="section-number-3">2.2</span> About ReadTheOrg</h3>
 <div class="outline-text-3" id="text-2-2">
 <p>
 &ldquo;OMG. The ReadTheOrg theme for exported HTML from org mode files is eye
@@ -368,8 +368,8 @@ available.&rdquo; <br />
 </div>
 </div>
 
-<div id="outline-container-org5461123" class="outline-2">
-<h2 id="org5461123"><a id="ID-79e0ed21-c3b0-4f00-bdab-29fbff9dcad4"></a><span class="section-number-2">3</span> Gallery</h2>
+<div id="outline-container-org8d5591f" class="outline-2">
+<h2 id="org8d5591f"><a id="ID-79e0ed21-c3b0-4f00-bdab-29fbff9dcad4"></a><span class="section-number-2">3</span> Gallery</h2>
 <div class="outline-text-2" id="text-3">
 <p>
 This is a list of available <b>HTML themes for Org mode</b>, which you can use right
@@ -377,8 +377,8 @@ now!  Well, I hope to have more than one in a couple of weeks&#x2026;
 </p>
 </div>
 
-<div id="outline-container-orgf5a7ff1" class="outline-3">
-<h3 id="orgf5a7ff1"><span class="section-number-3">3.1</span> Bigblow</h3>
+<div id="outline-container-org76921a5" class="outline-3">
+<h3 id="org76921a5"><span class="section-number-3">3.1</span> Bigblow</h3>
 <div class="outline-text-3" id="text-3-1">
 <p>
 Bigblow is perfect for your work: it is a clean design aimed at optimal <b>Org
@@ -478,8 +478,8 @@ Keyboard shortcuts to save time and boost your productivity:
 </div>
 </div>
 
-<div id="outline-container-org4059947" class="outline-3">
-<h3 id="org4059947"><span class="section-number-3">3.2</span> ReadTheOrg</h3>
+<div id="outline-container-orga5730a0" class="outline-3">
+<h3 id="orga5730a0"><span class="section-number-3">3.2</span> ReadTheOrg</h3>
 <div class="outline-text-3" id="text-3-2">
 <p>
 ReadTheOrg is a clone of the official &#x2013; and great! &#x2013;  <a href="https://github.com/snide/sphinx_rtd_theme">theme</a>
@@ -514,8 +514,8 @@ default structure of the HTML export)!
 </div>
 </div>
 
-<div id="outline-container-org257eb0b" class="outline-2">
-<h2 id="org257eb0b"><span class="section-number-2">4</span> Demo</h2>
+<div id="outline-container-org38cce59" class="outline-2">
+<h2 id="org38cce59"><span class="section-number-2">4</span> Demo</h2>
 <div class="outline-text-2" id="text-4">
 <p>
 I&rsquo;ve written a demo page for the themes that provides a maximal working support
@@ -529,11 +529,11 @@ admonitions, footnotes, tables and other details.
 </div>
 </div>
 
-<div id="outline-container-org6be6bfe" class="outline-2">
-<h2 id="org6be6bfe"><span class="section-number-2">5</span> Using a theme</h2>
+<div id="outline-container-orgf6a8718" class="outline-2">
+<h2 id="orgf6a8718"><span class="section-number-2">5</span> Using a theme</h2>
 <div class="outline-text-2" id="text-5">
 <p>
-Using a theme from the <a href="#org5461123">theme gallery</a> for your own Org documents is very easy:
+Using a theme from the <a href="#org8d5591f">theme gallery</a> for your own Org documents is very easy:
 </p>
 
 <ol class="org-ol">
@@ -572,8 +572,8 @@ with <code>C-c C-e h h</code>.</li>
 </div>
 </div>
 
-<div id="outline-container-org5d40f7e" class="outline-2">
-<h2 id="org5d40f7e"><span class="section-number-2">6</span> Customizing a theme</h2>
+<div id="outline-container-org1db930f" class="outline-2">
+<h2 id="org1db930f"><span class="section-number-2">6</span> Customizing a theme</h2>
 <div class="outline-text-2" id="text-6">
 <p>
 You love those themes, but you still would like to override particular HTML
@@ -598,12 +598,12 @@ change&#x2026;
 </div>
 </div>
 
-<div id="outline-container-orga58a918" class="outline-2">
-<h2 id="orga58a918"><span class="section-number-2">7</span> Contributing</h2>
+<div id="outline-container-orgb9bfd09" class="outline-2">
+<h2 id="orgb9bfd09"><span class="section-number-2">7</span> Contributing</h2>
 <div class="outline-text-2" id="text-7">
 </div>
-<div id="outline-container-org3437b91" class="outline-3">
-<h3 id="org3437b91"><span class="section-number-3">7.1</span> Issues</h3>
+<div id="outline-container-org584ceea" class="outline-3">
+<h3 id="org584ceea"><span class="section-number-3">7.1</span> Issues</h3>
 <div class="outline-text-3" id="text-7-1">
 <p>
 Report issues and suggest features and improvements on the <a href="https://github.com/fniessen/org-html-themes/issues/new">GitHub issue tracker</a>.
@@ -611,8 +611,8 @@ Report issues and suggest features and improvements on the <a href="https://gith
 </div>
 </div>
 
-<div id="outline-container-org917e168" class="outline-3">
-<h3 id="org917e168"><span class="section-number-3">7.2</span> Patches</h3>
+<div id="outline-container-org9afa6ad" class="outline-3">
+<h3 id="org9afa6ad"><span class="section-number-3">7.2</span> Patches</h3>
 <div class="outline-text-3" id="text-7-2">
 <p>
 I love contributions!  Patches under any form are always welcome!
@@ -620,8 +620,8 @@ I love contributions!  Patches under any form are always welcome!
 </div>
 </div>
 
-<div id="outline-container-org0c6ec62" class="outline-3">
-<h3 id="org0c6ec62"><span class="section-number-3">7.3</span> Donations</h3>
+<div id="outline-container-orgedb6193" class="outline-3">
+<h3 id="orgedb6193"><span class="section-number-3">7.3</span> Donations</h3>
 <div class="outline-text-3" id="text-7-3">
 <p>
 If you use the org-html-themes project (or any of <a href="https://github.com/fniessen/">my other projects</a>) and feel it
@@ -637,8 +637,8 @@ beer and as in speech.
 </div>
 </div>
 
-<div id="outline-container-org31cd7fe" class="outline-3">
-<h3 id="org31cd7fe"><span class="section-number-3">7.4</span> Follow me</h3>
+<div id="outline-container-orgafa81e0" class="outline-3">
+<h3 id="orgafa81e0"><span class="section-number-3">7.4</span> Follow me</h3>
 <div class="outline-text-3" id="text-7-4">
 <p>
 I have an <a href="https://twitter.com/f_niessen">f_niessen</a> account on Twitter.  You should follow it.
@@ -647,11 +647,11 @@ I have an <a href="https://twitter.com/f_niessen">f_niessen</a> account on Twitt
 </div>
 </div>
 
-<div id="outline-container-org8c77008" class="outline-2">
-<h2 id="org8c77008"><span class="section-number-2">8</span> License</h2>
+<div id="outline-container-org0006d60" class="outline-2">
+<h2 id="org0006d60"><span class="section-number-2">8</span> License</h2>
 <div class="outline-text-2" id="text-8">
 <p>
-Copyright (C) 2011-2017 Fabrice Niessen.
+Copyright (C) 2011-2018 Fabrice Niessen.
 </p>
 
 <p>
diff --git a/README.org b/README.org
index de20bdd..308797a 100644
--- a/README.org
+++ b/README.org
@@ -317,7 +317,7 @@ I have an [[https://twitter.com/f_niessen][f_niessen]] account on Twitter.  You
 
 * License
 
-Copyright (C) 2011-2017 Fabrice Niessen.
+Copyright (C) 2011-2018 Fabrice Niessen.
 
 Author: Fabrice Niessen \\
 Keywords: org-mode html themes