Due to how different plugins and modules work, instructions on setting them up can vary. A module is something that is added inside a particular page while a plugin is something that would be added to every article. I recommend consulting with the developer of that particular plugin for more information on their specific setup instructions.
I have contacted the developer, but still no reply. Will you be able to help me with this plugin.
I have installed this, but cannot see a way to plugin with my article.
Their plugin is not something that we have too much information on it as we did not develop it. I was, however, able to locate their installation instructions on their website which should get you started in the right direction: