Update Code of Conduct reference (#3599)

Signed-off-by: Emmanuel Ferdman <emmanuelferdman@gmail.com>

README.adoc

@@ -52,7 +52,7 @@ given the ability to merge pull requests.
 
 [[code-of-conduct]]
 == Code of Conduct
-This project adheres to the Contributor Covenant https://github.com/spring-cloud/spring-cloud-build/blob/main/docs/src/main/asciidoc/code-of-conduct.adoc[code of
+This project adheres to the Contributor Covenant https://github.com/spring-cloud/spring-cloud-build/blob/main/docs/modules/ROOT/partials/code-of-conduct.adoc[code of
 conduct]. By participating, you  are expected to uphold this code. Please report
 unacceptable behavior to spring-code-of-conduct@pivotal.io.