Write documentation to any of undocumented plugins #830

[Tejoooo]

Please DO NOT DELETE this template. Fill it. PR without your declaration that you licence your code under MIT will be discarded.

Tips

• Give the same name to the pull request as the name of ticket if possible
• Make the title in form of: Pull request title (#)
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• Test your code thoroughly before PR.

Pull Request title

 Pull request title (#830)

Pull Request description

Added the description about the get issue.

---

We need your declaration that your contribution is MIT licensed without it, we can not merge your code. To make clear that you license your contribution under the MIT you have to acknowledge this by using the following check-box.

• [ YES] I hereby declare this contribution to be licensed under the MIT license

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[Tejoooo]

@Tracardi check this