run tfdocs step

.github/workflows/pr.yml

@@ -31,7 +31,7 @@ jobs:
     name: Run tfplugindocs
     runs-on: ubuntu-latest
     permissions:
-      contents: read
+      contents: write
 
     steps:
       - uses: actions/checkout@v2
@@ -50,11 +50,15 @@ jobs:
           unzip tfplugindocs.zip
           chmod +x tfplugindocs
 
-      - name: Compare generated files with checked in files
+      - name: Generate files with checked in files
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           rm -r docs
           /tmp/tfplugindocs
-          git diff --stat --exit-code ./docs
+          git add .
+          git commit -m "added terraform docs"
+          git push
   terraform_lint:
 
     name: Run terraform-lint