Remove the MySQL submodule and add a link to the repo in the README.

Signed-off-by: Avi Miller <[email protected]>

Author: Djelibeybi

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "MySQL"]
-	path = MySQL
-	url = https://github.com/mysql/mysql-docker.git

MySQL

@@ -15,12 +15,13 @@ This repository contains Dockerfiles and samples to build Docker images for Orac
 And Open Source projects:
 
  - [GlassFish](https://github.com/oracle/docker-images/tree/master/GlassFish)
- - [MySQL](https://github.com/mysql/mysql-docker/)
  - [NoSQL](https://github.com/oracle/docker-images/tree/master/NoSQL)
  - [OpenJDK](/OpenJDK)
 
 Oracle Linux images can be found in the [`Oracle Linux Container Images repository`](https://github.com/oracle/ol-container-images).
 
+MySQL images can be found in the ['MySQL image repository'](https://github.com/mysql/mysql-docker/).
+
 For pre-built images containing Oracle software, please check the [Oracle Container Registry](https://container-registry.oracle.com).
 
 For support and certification information, please consult the documentation for each product.