Add link checker

.github/workflows/ci.yaml

@@ -1,11 +1,18 @@
-name: ci 
+name: ci
 on:
  push:
  branches:
  - main
 permissions:
  contents: write
 jobs:
+ mkdocs-link-check:
+ runs-on: ubuntu-latest
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v3
+ - name: Check Links
+ uses: byrnereese/github-action-mkdocs-link-check@v1
  deploy:
  runs-on: ubuntu-latest
  steps:
@@ -17,12 +24,12 @@ jobs:
  - uses: actions/setup-python@v4
  with:
  python-version: 3.x
- - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV 
+ - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
  - uses: actions/cache@v3
  with:
  key: mkdocs-material-${{ env.cache_id }}
  path: .cache
  restore-keys: |
  mkdocs-material-
- - run: pip install mkdocs-material 
+ - run: pip install mkdocs-material
  - run: mkdocs gh-deploy --force