Use github-action-markdown-link-check (open-telemetry#2824)

* Use github-action-markdown-link-check

* Rename config file and remove readme

Author: jchengsfx

.github/workflows/check-links.yaml

@@ -12,13 +12,11 @@ jobs:
         uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - name: Setup Node
-        uses: actions/setup-node@v2
+      - uses: gaurav-nelson/[email protected]
         with:
-          node-version: '14'
-      - name: Check links in markdown docs
-        run: |
-          pushd $HOME
-          npm install --save-dev [email protected]
-          popd
-      - run: ./.github/workflows/check-links/check-links.sh
+          base-branch: 'main'
+          use-quiet-mode: 'yes'
+          use-verbose-mode: 'yes'
+          config-file: '.github/workflows/check_links_config.json'
+          check-modified-files-only: 'yes'
+          folder-path: ''

.github/workflows/check-links/README.md

@@ -9,5 +9,6 @@
         {
             "pattern": "http(s)?://example.com"
         }
-    ]
+    ],
+    "aliveStatusCodes": [429, 200]
 }