Add forum links (#550)

Author: ErikSchierboom

building/config.json

@@ -829,6 +829,13 @@
     "title": "The Test Runner Interface",
     "blurb": ""
   },
+  {
+    "uuid": "0ab39b58-771e-42dc-aac9-e531bf43034e",
+    "slug": "tooling/test-runners/libraries",
+    "path": "building/tooling/test-runners/libraries.md",
+    "title": "Libraries",
+    "blurb": ""
+  },
   {
     "uuid": "a9cf4712-9022-4bd2-83aa-55cbdfd62374",
     "slug": "tooling/lines-of-code-counter",

building/tooling/test-runners/README.md

@@ -23,3 +23,4 @@ You can use the following documents to learn more about building a test runner:
 - [creating a Test Runner from scratch](/docs/building/tooling/test-runners/creating-from-scratch)
 - [The Test Runner interface](/docs/building/tooling/test-runners/interface)
 - [How to build a Docker image with Docker for local testing and deployment](/docs/building/tooling/test-runners/docker)
+- [When and how to support libraries](/docs/building/tooling/test-runners/libraries)