Update README.md

Co-Authored-By: David Dias <[email protected]>

Author: AuHau

README.md

@@ -158,7 +158,7 @@ There are currently two main datastore implementations:
  So with simple migrations you shouldn't worry about the difference between `datastore-fs` and `datastore-level` 
  and by default use the `datastore-fs` package (as the replace mechanism does not work vice versa).
 
-#### Guidelines
+### Guidelines
 
 The recommended way to write a new migration is to first bootstrap a dummy migration using the CLI: