Update README.md - no longer inlined

Author: ameowlia

README.md

@@ -1,7 +1,3 @@
-> [!CAUTION]
-> This repository has been in-lined (using git-subtree) into [winc-release](https://github.com/cloudfoundry/winc-release/pull/46). Please make any
-> future contributions directly to winc-release.
-
 # Certsplitter
 
 [![Go Report