update https manifests for docker compose (#781)

install-manifests/docker-compose-https/Caddyfile

@@ -1,4 +1,5 @@
-<your-domain.com> {
+# replace :80 with your domain name to get automatic https via LetsEncrypt
+:80 {
     proxy / graphql-engine:8080 {
         websocket
     }

install-manifests/docker-compose-https/docker-compose.yaml

@@ -1,7 +1,7 @@
 version: '3.6'
 services:
   postgres:
-    image: postgres
+    image: postgres:10.5
     restart: always
     volumes:
     - db_data:/var/lib/postgresql/data
@@ -11,14 +11,17 @@ services:
     - "postgres"
     restart: always
     environment:
-      HASURA_GRAPHQL_ACCESS_KEY: mysecretaccesskey
+      # database url to connect
       HASURA_GRAPHQL_DATABASE_URL: postgres://postgres:@postgres:5432/postgres
+      # enable the console served by server
+      HASURA_GRAPHQL_ENABLE_CONSOLE: "true" # set "false" to disable console
+      ## uncomment next line to set an access key
+      # HASURA_GRAPHQL_ACCESS_KEY: mysecretaccesskey
     command:
     - graphql-engine 
     - serve
-    - --enable-console
   caddy:
-    image: abiosoft/caddy
+    image: abiosoft/caddy:0.11.0
     depends_on:
     - "graphql-engine"
     restart: always