VEND-59: Fix wrong branch in readme

README.md

@@ -103,7 +103,7 @@ git push --tags
 Then cleanup your branch and prepare the next development iteration:
 
 ```bash
-git checkout main
+git checkout DBCP_2_X_NX_BRANCH
 git branch -D tmp-release
 mvn versions:set -DnewVersion=2.12.1-NX02-SNAPSHOT -DgenerateBackupPoms=false
 git commit -a -m "Post release 2.12.1-NX01"