Add plugin option for Goland

[xxpxxxxp]

I'm writing a plugin for Goland to support golangci-lint inline, also providing possible quick fixes: https://github.com/xxpxxxxp/intellij-plugin-golangci-lint
Should be stable now, I'd like to suggest it as an option for Goland users.
Thank you all authors, golangci-lint is widely used in my org and improved code quality significantly.

[boring-cyborg]

Hey, thank you for opening your first Pull Request !

[CLAassistant]

All committers have signed the CLA.

[ldez]

Hello,

what is the interest of your plugin compared to native integration (FileWatcher)?

[xxpxxxxp]

Well, FileWatcher is tough to work with, one has to save the current file then find issues in the output panel, go back to fix them.
This plugin is hinting issues inline, providing quick fix to some issues, see example below

[bombsimon]

I've been using this plugin with IntelliJ and I think it's a nice addition instead of using file watchers. Sounds reasonable to reference this in the docs.

[golangci-automator]

Hey, @xxpxxxxp — we just merged your PR to golangci-lint! 🔥🚀

golangci-lint is built by awesome people like you. Let us say “thanks”: we just invited you to join the GolangCI organization on GitHub.
This will add you to our team of maintainers. Accept the invite by visiting this link.

By joining the team, you’ll be able to label issues, review pull requests, and merge approved pull requests.
More information about contributing is here.

Thanks again!