Update contributing.md

Author: faretek1

docs/contributing.md

@@ -5,7 +5,7 @@ Thanks for considering to contribute to the ScratchAPIs project!
 ## Ways you can contribute
 
 - Open a pull request to add some code
-- Open a pull request [here](https://github.com/scratch-api/scratch-api.github.io) to add docs
+- Open a pull request [here](https://github.com/scratch-api/scratch-api.github.io) to add docs or use the 'edit this page' button towards the top right of this page.
 - If you have an existing ScratchAPI/interaction project, consider adding it to [the GitHub org](https://github.com/scratch-api)
 
 !!! Warning