Refactoring Maintainer Docker File

mssql/Dockerfile

@@ -1,5 +1,7 @@
 FROM microsoft/mssql-server-linux
 
+MAINTAINER Mahmoud Zalt <mahmoud@zalt.me>
+
 # Create config directory
 # an set it as WORKDIR
 RUN mkdir -p /usr/src/app
@@ -18,4 +20,4 @@ VOLUME /var/opt/mssql
 
 EXPOSE 1433
 
-CMD /bin/bash ./entrypoint.sh
+CMD /bin/bash ./entrypoint.sh