add retryCount for connection checks.

Author: StevenLuMT

.github/workflows/dead-link-checker.yaml

@@ -39,5 +39,5 @@ jobs:
       - run: sudo npm install -g markdown-link-check@3.11.2
       - run: |
           for file in $(find . -name "*.md"); do
-            markdown-link-check -c .dlc.json -q "$file"
+            markdown-link-check -c .dlc.json --retryCount 3 -q "$file"
           done