Update README.md

Author: EricRabil

README.md

@@ -5,6 +5,14 @@
 
 Cast is an open-standard for Discord bots, allowing developers to create a single plugin that is compatible with many different bots that all share the same plugin API.
 
+## Documentation
+
+All of the documentation for Cast is available [here](https://castproject.github.io/Cast) - the quality is subpar but our documentation generator will be improved soon.
+
+## How can I support Cast plugins?
+
+Simple! Implement all of the interfaces supplied by Cast. If done correctly, loading a Cast plugin should run flawlessly after implementing everything. Just follow the standard and refer to the docs when you're confused.
+
 ## Contributing
 
 1. Fork it!