docs: document moved repository (#322)

Author: alestiago

README.md

@@ -1,5 +1,14 @@
 # Very Good Core
 
+## 🚶‍♂️ [Repository has moved](https://github.com/VeryGoodOpenSource/very_good_templates/tree/main/very_good_core)
+
+The Very Good Core template is now developed within the [Very Good Templates](https://github.com/VeryGoodOpenSource/very_good_templates) repository, and can be found at [very_good_templates/very_good_core](https://github.com/VeryGoodOpenSource/very_good_templates/tree/main/very_good_core).
+
+Please file new issues on
+[Very Good Templates](https://github.com/VeryGoodOpenSource/very_good_templates).
+
+---
+
 [![Very Good Ventures][logo_white]][very_good_ventures_link_dark]
 [![Very Good Ventures][logo_black]][very_good_ventures_link_light]