github actions test report docs

Author: lihaoyi

docs/modules/ROOT/pages/javalib/testing.adoc

@@ -20,4 +20,11 @@ include::partial$example/javalib/testing/3-integration-suite.adoc[]
 
 == Test Grouping
 
-include::partial$example/javalib/testing/4-test-grouping.adoc[]
+include::partial$example/javalib/testing/4-test-grouping.adoc[]
+
+
+== Github Actions Test Reports
+
+If you use Github Actions for CI, you can use https://github.com/mikepenz/action-junit-report in
+your pipeline to render the generated `test-report.xml` files nicely on Github. See
+https://github.com/com-lihaoyi/mill/pull/4218/files for an example integration

docs/modules/ROOT/pages/kotlinlib/testing.adoc

@@ -20,4 +20,11 @@ include::partial$example/kotlinlib/testing/3-integration-suite.adoc[]
 
 == Test Grouping
 
-include::partial$example/kotlinlib/testing/4-test-grouping.adoc[]
+include::partial$example/kotlinlib/testing/4-test-grouping.adoc[]
+
+
+== Github Actions Test Reports
+
+If you use Github Actions for CI, you can use https://github.com/mikepenz/action-junit-report in
+your pipeline to render the generated `test-report.xml` files nicely on Github. See
+https://github.com/com-lihaoyi/mill/pull/4218/files for an example integration

docs/modules/ROOT/pages/scalalib/testing.adoc

@@ -20,4 +20,10 @@ include::partial$example/scalalib/testing/3-integration-suite.adoc[]
 
 == Test Grouping
 
-include::partial$example/scalalib/testing/4-test-grouping.adoc[]
+include::partial$example/scalalib/testing/4-test-grouping.adoc[]
+
+== Github Actions Test Reports
+
+If you use Github Actions for CI, you can use https://github.com/mikepenz/action-junit-report in
+your pipeline to render the generated `test-report.xml` files nicely on Github. See
+https://github.com/com-lihaoyi/mill/pull/4218/files for an example integration