Merge pull request #535 from external-secrets/fix/typo

Fix typo

README.md

@@ -65,7 +65,7 @@ We welcome and encourage contributions to this project! Please read the [Develop
 
 Please report vulnerabilities by email to contact@external-secrets.io, also see our [security policy](SECURITY.md) for details.
 
-## Security
+## Adopters
 
 Please create a PR and add your company or your project to our [ADOPTERS](ADOPTERS.md) file if you are using our project!