Fix documentation deployment.

.github/workflows/documentation.yml

@@ -115,7 +115,7 @@ jobs:
           cd docs
           git config --local user.email "actions@github.com"
           git config --local user.name "GitHub Actions"
-          git add *.md
+          git add api/*.md
           git commit -m "Update auto-generated documentation for ${GIT_TAG}"
 
       - name: Push docs.openra.net (Release)