Update README.md

Author: entlein

README.md

@@ -1,3 +1,5 @@
+This fork main = `mirrormain`
+
 # NodeAgent
 
 <p align="center">
@@ -590,4 +592,4 @@ See the [Releases](https://github.com/kubescape/node-agent/releases) page for ve
 
 <p align="center">
   Made with ❤️ by the <a href="https://github.com/kubescape">Kubescape</a> community
-</p>
+</p>