You can either tell `puml-mode` to autocomplete the word before the cursor by typing `M-x puml-complete-symbol`. This will open a popup with all the available completions as found in the list of keywords given by running PlantUML with the `-language` flag.
To render the PlantUML diagram within Emacs, you can also hit `M-x puml-preview`. This will run PlantUML and display the result in the `*PUML-Preview*` buffer. The format used to render the diagram is automagically chosen from what's supported by your Emacs. It will be one of the following, in order of preference:
- SVG
- ~~PNG~~ still unsupported, see #6
- Unicode ASCII art
Default key bindings
====================
The following shortcuts are enabled by default:
C-c C-c renders a PlantUML diagram from the current buffer in the best supported format
Released under the terms of [GPLv2](http://www.gnu.org/licenses/gpl-2.0.html). See [LICENSE.txt](https://github.com/skuro/plantuml-mode/blob/master/LICENSE.txt).