Provide installation and usage instructions

[Neirpyc]

I've installed this plugin to CLion (2019.3.3) and it successfully installed a plugin called Plugin display name here.

Yet, I've not been able to get any evidence of the norminette being run on my code.

How I installed it

• cloned the repository
• imported it into ItelliJ Idea 2020.2.3
• modified build.gradle to the following:

// See https://github.com/JetBrains/gradle-intellij-plugin/
intellij {
    version '2019.3.3'
    type 'CL'
}

• Ran the gradle task intellij/runIde

How I expected this plugin to work

Either a real time warning/errors highlight as I type, or an inspection called "Norminette" into Code > Run Iespection by Name...

How to fix it

I wish I could open a PR with a README.md but I didn't manage to get it working, and I think it would improve this project if some instructions were given.