Updated docs

Author: aidanharan

README.md

@@ -1,4 +1,7 @@
-
 # Docker Images for Rails SQL Server
 
-
+Images:
+- [mssql-server-linux-adapter-ci](mssql-server-linux-adapter-ci)
+  - Used by the [ActiveRecord SQL Server Adapter](https://github.com/rails-sqlserver/activerecord-sqlserver-adapter) tests.
+- [mssql-server-linux-rails](mssql-server-linux-rails)
+- [mssql-server-linux-tinytds](mssql-server-linux-tinytds)

mssql-server-linux-adapter-ci/README.md

@@ -11,9 +11,11 @@ Includes all CI dependencies, Ruby, [FreeTDS](http://www.freetds.org/) and [`wai
 
 All commands assume that the `$PWD` is this directory.
 
-### Build
+### Build and Push Image
 
-Fully automated build
+Fully automated build. The docker image is pushed as part of the build process. So you need to login to Github packages first:
+
+`docker login ghcr.io`
 
 ```shell
 ./build.sh 2.7.1