Add link check action

.github/workflows/link-check.yml

@@ -0,0 +1,23 @@
+# Workflow for link checking with lychee
+name: Link Check Source Files with Lychee
+
+on:
+  # Runs on pull requests targeting the dev branch
+  pull_request:
+    branches: ["dev"]
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  link_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Link Checker
+        id: lychee
+        uses: lycheeverse/lychee-action@v2
+        with:
+          # NOTE: Lychee (and sphinx) encounter issues with SSL certificates for INCF URLs, so use --insecure
+          args: --verbose --no-progress './content/**/*.md' './content/**/*.html' './content/**/*.rst' --insecure

.gitignore

@@ -3,3 +3,6 @@
 /public/**
 .hugo_build.lock
 /todo.md
+
+# PyCharm
+.idea/