feat: Add exceptions to GitHub output (#818)

Signed-off-by: shayyxi <shazi12384@gmail.com>
Co-authored-by: shayyxi <shazi12384@gmail.com>

examples/README.md

@@ -1,3 +1,26 @@
 # Examples
 
 This folder contains examples of how to use Conftest.
+
+## How to test a manifest against a specific policy in the examples folder
+
+There are various policies with the manifests in the examples folder. They can be tested in a following way:
+
+Run the following command to build the local binary:
+```console
+make build
+```
+
+Then, run the following command to test the specific manifest against a specific policy:
+```console
+./conftest test -p examples/exceptions/policy/ examples/exceptions/deployments.yaml
+```
+
+In the above command, we are testing the manifest `examples/exceptions/deployments.yaml` against the policy `examples/exceptions/policy/`.
+
+The `./conftest test` command supports various flags as well for different output formats and configurations. The list of
+supported flags can be displayed with the following command:
+
+```console
+./conftest test --help
+```

output/github.go

@@ -43,7 +43,7 @@ func (t *GitHub) Output(checkResults []CheckResult) error {
 		}
 
 		for _, exception := range result.Exceptions {
-			fmt.Fprintf(t.writer, "exception file=%v %v\n", result.FileName, exception.Message)
+			fmt.Fprintf(t.writer, "::notice file=%v::%v\n", result.FileName, exception.Message)
 		}
 
 		for _, skipped := range result.Skipped {