Merge pull request #11 from fish-shop/check-markdown-links

Add markdown link checker workflow

.github/workflows/links.yml

@@ -0,0 +1,30 @@
+name: markdown-links
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  release:
+    types:
+      - published
+  schedule:
+    - cron: "0 18 * * *"
+jobs:
+  markdown-links:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Check links in modified Markdown files
+      if: github.event_name == 'pull_request'
+      uses: gaurav-nelson/github-action-markdown-link-check@v1
+      with:
+        base-branch: main
+        check-modified-files-only: yes
+        use-verbose-mode: yes
+    - name: Check links in all Markdown files
+      if: github.event_name != 'pull_request'
+      uses: gaurav-nelson/github-action-markdown-link-check@v1
+      with:
+        use-verbose-mode: yes