Update index.md

Author: faretek1

docs/index.md

@@ -2,6 +2,6 @@
 
 This project aims to document the Scratch API and other features, such as the sb3 file format. The source of these docs is available on [GitHub](https://github.com/scratch-api/docs).
 
-You can make contributions [by opening a pull request on GitHub](https://github.com/scratch-api/docs/pulls)
+You can make contributions [by opening a pull request on GitHub](https://github.com/scratch-api/docs/pulls) or using the 'edit this page' button towards the top right
 
 The docs are licensed under [MIT](https://github.com/scratch-api/docs/blob/main/LICENSE)