Update update_readme.yaml

.github/workflows/update_readme.yaml

@@ -21,8 +21,8 @@ jobs:
     - name: Extract Markdown links and update README
       run: |
         find docs -type f -name "*.md" -exec awk -v RS= '{gsub(/\n/, " "); print "[" FILENAME "](" FILENAME ")"}' {} \; > links.txt
-        awk 'BEGIN{p=1} /^## Notes/{print "## Notes"; system("cat links.txt"); p=0} p' README.md > temp_readme.md
-        mv temp_readme.md README.md
+        awk 'BEGIN{p=1} /^## Notes/{print "## Notes"; system("cat links.txt"); p=0} p' index.md > temp_index.md
+        mv temp_index.md index.md
 
     - name: commit
       run: |