Update CONTRIBUTING.md

Author: OlgaMaciaszek

.github/CONTRIBUTING.md

@@ -16,7 +16,7 @@ author credit if we do.  Active contributors might be asked to join the core tea
 given the ability to merge pull requests.
 
 ## Code of Conduct
-This project adheres to the Contributor Covenant [Code of conduct](https://github.com/spring-cloud/spring-cloud-build/blob/master/docs/src/main/asciidoc/code-of-conduct.adoc). By participating, you  are expected to uphold this code. Please report
+This project adheres to the Contributor Covenant [Code of conduct](https://github.com/spring-cloud/spring-cloud-build/blob/main/docs/modules/ROOT/partials/code-of-conduct.adoc). By participating, you  are expected to uphold this code. Please report
 unacceptable behavior to [email protected].
 
 ## Code Conventions and Housekeeping
@@ -41,4 +41,4 @@ added after the original pull request but before a merge.
   other target branch in the main project).
 * When writing a commit message please follow [these conventions](https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html),
   if you are fixing an existing issue please add `Fixes gh-XXXX` at the end of the commit
-  message (where XXXX is the issue number).
+  message (where XXXX is the issue number).