docs: add step to Develop flow

Author: tp26610

README.md

@@ -47,6 +47,7 @@ Successfully released QuickCrypto!
 
 - Create pull request into cbx branch
 - After the PR merged, publish to npm on cbx branch
-- Create git tag and github release
+- Create pull request for the version change to cbx branch
+- After version change PR merged, Create git tag and github release
   - Example git tag: `v0.7.17-cbx.6`
   - Using auto-generate notes from GitHub GUI