Update docker-compose.yml for better description of Docker images.

Thanks to xet7 !

docker-compose.yml

@@ -90,14 +90,7 @@ services:
 
   wekandb:
     #-------------------------------------------------------------------------------------
-    # ==== MONGODB AND METEOR VERSION ====
-    # a) mongodb latest, like 3.2 - 4.4 or newer https://hub.docker.com/_/mongo?tab=description
-    # 2020-12-03:
-    # - Mongo image copied from Docker Hub mongo:4.4.2-bionic to Quay
-    #   to avoid Docker Hub rate limits.
-    # Quay image does work:
-    #   image: quay.io/wekan/mongo:4.4.2-bionic
-    # Docker Hub MongoDB image does work:
+    # ==== MONGODB FROM DOCKER HUB ====
     image: mongo:6
     #-------------------------------------------------------------------------------------
     container_name: wekan-db
@@ -118,7 +111,7 @@ services:
 
   wekan:
     #-------------------------------------------------------------------------------------
-    # ==== MONGODB AND METEOR VERSION ====
+    # ==== WEKAN FROM QUAY OR DOCKER HUB ====
     # Both Quay and Docker Hub has latest, but because
     # latest tag changes when is newest release,
     # when upgrading would be better to use version tag.