Add missing JavaScript in-depth.html documentation (#280)

- Add missing documentation
- Add pure-nodejs run-in-depth.mjs tests to validate links

Fixes #199

Author: camillobruni

.github/workflows/test.yml

@@ -103,6 +103,9 @@ jobs:
             - name: Run License Checks
               run: npm run test:license
 
+            - name: Run in-depth.html validation
+              run: npm run test:in-depth
+
             - name: Run Build
               run: |
                   if ${{ github.event_name == 'pull_request' }}; then