docs: Modified the Docker doc to reflect distributed release image & (#3362)

modification.

docs/docker/README.md

@@ -39,8 +39,6 @@ docker run -p 9000:9000 --name minio1 \
 
 ## 4. Test Distributed Minio on Docker
 
-Currently Minio distributed version is under testing. We do not recommend using it in production. 
-
 This example shows how to run 4 node Minio cluster inside different docker containers using [docker-compose](https://docs.docker.com/compose/). Please download [docker-compose.yml](https://raw.githubusercontent.com/minio/minio/master/docs/docker/docker-compose.yml) to your current working directory, docker-compose pulls the Minio Docker image with label ``edge``.
 
 ### Run `docker-compose`

docs/docker/docker-compose.yml

@@ -5,7 +5,7 @@ version: '2'
 # 9001 through 9004.
 services:
   minio1:
-    image: minio/minio:edge
+    image: minio/minio
     ports:
       - "9001:9000"
     environment:
@@ -13,7 +13,7 @@ services:
       MINIO_SECRET_KEY: minio123
     command: server http://minio1/myexport http://minio2/myexport http://minio3/myexport http://minio4/myexport
   minio2:
-    image: minio/minio:edge
+    image: minio/minio
     ports:
       - "9002:9000"
     environment:
@@ -21,7 +21,7 @@ services:
       MINIO_SECRET_KEY: minio123
     command: server http://minio1/myexport http://minio2/myexport http://minio3/myexport http://minio4/myexport
   minio3:
-    image: minio/minio:edge
+    image: minio/minio
     ports:
       - "9003:9000"
     environment:
@@ -29,7 +29,7 @@ services:
       MINIO_SECRET_KEY: minio123
     command: server http://minio1/myexport http://minio2/myexport http://minio3/myexport http://minio4/myexport
   minio4:
-    image: minio/minio:edge
+    image: minio/minio
     ports:
       - "9004:9000"
     environment: