Add Maven docker installation

Add maven docker installation

Update manual installation ReadMe

To Install Apache Maven with Docker

1. To build

   $ cd selenium-tests/selenium-maven/
   $ docker build -t apache_maven ./docker-installation/

2. To run

   $ docker run apache_maven

3. To Map mvn binary from docker container to host machine, so that it be executable on host as in docker container

   $

Actually since google chrome browser not able to open from docker container I've just installed with manual installation by following the steps in ReadMe

Closes #19 (closed)