Migrate README to Emacs verb

verb is a much better tool than restclient.

README.org

@@ -8,10 +8,9 @@ This project was inspired by Snappass and was previously licensed under MIT.
 
 - https://github.com/pinterest/snappass
 
-** Tests
+** Tests :verb:
 
-#+name: mycontent
-#+begin_src restclient
+*** Store secret
 POST http://localhost:8000
 Accept: application/json
 Content-Type: application/json
@@ -20,46 +19,12 @@ Content-Type: application/json
 "ttl": 604800,
 "password": "Foo"
 }
-#+end_src
 
-#+RESULTS: mycontent
-#+BEGIN_SRC js
-{
-  "key": "snappass448b8e2a34174c20a2e636f14e99f836~c85WYn1KjFtqpTVqYifHuQxvjhBTp0gF0W3fk4Z1oXc="
-}
-
-// POST http://localhost:8000
-// HTTP/1.1 200 OK
-// Server: gunicorn
-// Date: Fri, 29 Dec 2023 17:12:27 GMT
-// Connection: close
-// Content-Type: application/json
-// Content-Length: 101
-// Request duration: 0.093294s
-#+END_SRC
-
-#+begin_src restclient
+*** Retrieve secret
 POST http://localhost:8000/get-secret
 Accept: application/json
 Content-Type: application/json
 
 {
-"key": "snappass448b8e2a34174c20a2e636f14e99f836~c85WYn1KjFtqpTVqYifHuQxvjhBTp0gF0W3fk4Z1oXc="
+"key": "snappass941ad23f9e4b4e7fa699854e48f83ff9~tQVYlz56h1bzXVlrCY5W8rYER1sXGtvYtRHrMyXLhSc="
 }
-#+end_src
-
-#+RESULTS:
-#+BEGIN_SRC js
-{
-  "password": "Foo"
-}
-
-// POST http://localhost:8000/get-secret
-// HTTP/1.1 200 OK
-// Server: gunicorn
-// Date: Fri, 29 Dec 2023 17:12:36 GMT
-// Connection: close
-// Content-Type: application/json
-// Content-Length: 24
-// Request duration: 0.052981s
-#+END_SRC