[FLINK-33970] Add necessary checks for connector document

.dlc.json

@@ -0,0 +1,32 @@
+{
+  "ignorePatterns": [
+    {
+      "pattern": "^http://localhost"
+    },
+    {
+      "pattern": "^https://mvnrepository.com"
+    },
+    {
+      "pattern": "^https://img.shields.io"
+    },
+    {
+      "pattern": "^https://tokei.rs"
+    },
+    {
+      "pattern": "^https://json.org/"
+    },
+    {
+      "pattern": "^https://opencollective.com"
+    }
+  ],
+  "timeout": "30s",
+  "retryOn429": true,
+  "retryCount": 10,
+  "fallbackRetryDelay": "1000s",
+  "aliveStatusCodes": [
+    0,
+    200,
+    401,
+    403
+  ]
+}

.github/workflows/ci.yml

@@ -55,3 +55,13 @@ jobs:
       jdk_version: ${{ matrix.jdk }}
       timeout_global: 120
       timeout_test: 80
+  check_dead_links:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v3
+      - run: sudo npm install -g [email protected]
+      - run: |
+          for file in $(find . -name "*.md"); do
+            markdown-link-check -c .dlc.json -q "$file"
+          done