added docs to head readme

Author: matas-bitbybit-dev

README.md

@@ -1,6 +1,7 @@
 ## Bit By Bit Developers monorepo
 
-Visit [bitbybit.dev](https://bitbybit.dev) to use our full cloud platform.   
+Visit [bitbybit.dev](https://bitbybit.dev) to use our full cloud platform.  
+[Learn Bitbybit](https://learn.bitbybit.dev) on open-sourced documentation site.
 Best way to support us - [Silver or Gold plan subscription](https://bitbybit.dev/auth/pick-plan)    
 Buy unique products from our [Crafts shop](https://crafts.bitbybit.dev) all designed with Bitbybit algorithms       
 Check out [3D Bits app for Shopify](https://apps.shopify.com/3d-bits-1) also used in our Crafts shop