Update postgres share volume path

Author: appleboy

docker-compose.yml

@@ -281,7 +281,7 @@ services:
         image: tianon/true
         volumes:
             - ./data/mysql:/var/lib/mysql
-            - ./data/postgres:/var/lib/postgres
+            - ./data/postgres:/var/lib/postgresql/data
             - ./data/memcached:/var/lib/memcached
             - ./data/redis:/data
             - ./data/neo4j:/var/lib/neo4j/data