docs: tweak blockbase readme

blockbase/README.md

@@ -17,10 +17,10 @@ You can use `npm start` and it will be in 'watch mode' recompiling the .scss fil
 
 Use the [Create Blockbase Theme](https://github.com/Automattic/create-blockbase-theme) plugin.
 
-Install Blockbase (or any Blockbase child)
-Use the Customizer and/or Full Site Editor to tweak the design to your liking.
-Install the Create Blockbase Theme plugin 
-Use it to export a new child theme of Blockbase.
+1. Install Blockbase (or any Blockbase child)
+2. Use the Customizer and/or Full Site Editor to tweak the design to your liking.
+3. Install the Create Blockbase Theme plugin 
+4. Use it to export a new child theme of Blockbase.
 
 ## Creating a Blockbase child theme manually