apply suggestions from review

Author: renetapopova

modules/ROOT/pages/docker/docker-compose-standalone.adoc

@@ -21,7 +21,7 @@ For more information, see the Docker Compose official documentation on https://d
 ----
 services:
   neo4j:
-    image: neo4j:latest
+    image: neo4j:{neo4j-version-exact}
     volumes:  # <1>
         - /$HOME/neo4j/logs:/logs
         - /$HOME/neo4j/config:/config
@@ -68,7 +68,7 @@ For more information, see the Docker Compose official documentation on https://d
 ----
 services:
   neo4j:
-    image: neo4j:latest
+    image: neo4j:{neo4j-version-exact}
     volumes: # <1>
         - /$HOME/neo4j/logs:/logs
         - /$HOME/neo4j/config:/config