new checker

Author: markzegarelli

.github/workflows/check-links.yml

@@ -22,6 +22,8 @@ jobs:
         with:
           ruby-version: 2.6 # Not needed with a .ruby-version file
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+      - name: Yarn install
+        run: yarn install
       - name: Build jekyll website with
         run: bundle exec jekyll build
       - name: Check for broken links