More comments in dev compose file

docker-compose.yaml

@@ -8,8 +8,9 @@ services:
     volumes:
       # Map in docker socket
       - /var/run/docker.sock:/tmp/docker.sock:ro
-      # Map backup database locally
+      # Map local restic repository for dev
       - ./restic_data:/restic_data
+      # Map restic cache
       - ./restic_cache:/cache
       # Map in project source in dev
       - ./src:/restic-compose-backup