Fix: add write permissions for mkdocs (#25)

Author: thekaveman

Diff for: .github/workflows/mkdocs.yml

@@ -14,6 +14,8 @@ jobs:
   docs:
     name: Publish docs
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps:
       - name: Checkout
         uses: actions/checkout@v4