Link to Scratch Addons Docs instead of README

Co-authored-by: Samq64 <[email protected]>

Author: DNin01

content/docs/develop/getting-started/creating-an-addon.md

@@ -11,7 +11,8 @@ If possible, disable the Scratch Addons extension you downloaded from the store
 Make sure to read that article to be familiar with the terminology.
 
 ## Step 2: Fork/clone the [repo](https://github.com/ScratchAddons/ScratchAddons)
-Follow [these instructions](https://github.com/ScratchAddons/ScratchAddons#from-source) to download the source code locally and add Scratch Addons to your browser.
+Follow [these instructions](https://scratchaddons.com/docs/getting-started/installing/#from-source) to download the source code locally and add Scratch Addons to your browser.
+
 
 ## Step 3: Load the extension into Chrome
 *Note: Chrome is recommended for working on addons. Nevertheless, addons are expected to work on Firefox and Edge.*