Update check-releases.yml

Fix

Author: GarlicRot

.github/workflows/check-releases.yml

@@ -18,8 +18,8 @@ jobs:
       - name: Switch to gh-pages branch
         run: git checkout gh-pages
 
-      - name: Copy check-releases.js from main branch
-        run: git checkout main -- check-releases.js
+      - name: Copy check-releases.js and README.md from main branch
+        run: git checkout main -- check-releases.js README.md
 
       - name: Set up Node.js
         uses: actions/setup-node@v3