[FAB-17443] Implement Bot to Support Doc Maintainers

Signed-off-by: Brett Logan <[email protected]>

Author: Brett Logan

.mergify.yml

@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: Apache-2.0
+
+pull_request_rules:
+  - name: Auto-Merge on Approving Label and Changes Limited to docs/ Folder
+    conditions:
+      - files~=^docs/
+      - -files~=^(?!^docs).*
+      - label=doc-merge
+    actions:
+      merge:
+        method: rebase