CI/move link checking to pr checks (#83)

* ci: move link checking to checks blocking pr merge

* ci: include previously excluded nuttx-getting-started article from link checking

.github/workflows/deploy-hugo-site.yml

@@ -26,27 +26,7 @@ defaults:
     shell: bash
 
 jobs:
-  check-links:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Link Checker
-        id: lychee
-        uses: lycheeverse/lychee-action@v1
-        with:
-          args: |
-            --no-progress
-            --include-fragments
-            --exclude-path ./themes/
-            --exclude-path ./layouts/
-            --exclude-path ./content/blog/nuttx-getting-started/
-            .
-          # Fail action on broken links
-          fail: true
-
   build-and-deploy:
-    needs: check-links
     runs-on: ubuntu-latest
     steps:
 

.github/workflows/pr-check-links.yml

@@ -0,0 +1,24 @@
+name: Check links
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  check-links:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Link Checker
+        id: lychee
+        uses: lycheeverse/lychee-action@v1
+        with:
+          args: |
+            --no-progress
+            --include-fragments
+            --exclude-path ./themes/
+            --exclude-path ./layouts/
+            .
+          # Fail action on broken links
+          fail: true

.lycheeignore

@@ -0,0 +1,4 @@
+# content/blog/books-simplified-embedded-rust/index.md
+http://ser-book.com/espnostd
+http://ser-book.com/espstd
+https://www.theembeddedrustacean.com/subscribe