add go-version output when using go.mod

README.md

@@ -196,6 +196,8 @@ steps:
   - run: go version
 ```
 
+Finally, the `go-version` output contains the resolved Golang version from the `go.mod` file.
+
 ### If a different file
 
 The `go-version-file` input accepts a path to a file that contains the version of Go to be used by a project. It supports either major and minor (e.g 1.18) or major, minor and patch (e.g 1.18.7) tags. If the file contains only major and minor (e.g. 1.18) tags, the action will follow the above-mentioned approach.