[Bug] The 'Documentation', 'Failing test', and 'Improvement request' issue templates lack proper descriptions.

[jwdonahue]

Describe the bug
At Project=>Issues=>New Issue: https://github.com/GitTools/GitVersion/issues/new/choose
The Documentation, Failing test and Improvement request issue templates lack proper descriptions. They both have the default template descriptions "Describe this issue template's purpose here."

Expected Behavior

They should each provide sufficient descriptions of their purpose, such that a person attempting to file an issue can determine which template to use.

Actual Behavior

Useless default description: "Describe this issue template's purpose here."

Possible Fix

Steps to Reproduce

1. Navigate to https://github.com/GitTools/GitVersion
2. Click on Issues tab.
3. Click on New Issues button.
4. Read issue template descriptions.

Context

It slowed me down. I had two issues to report regarding the readme.md file, and wound up having to file this report first.

Your Environment

Chrome browser.

• Version Used:
• Operating System and version (Windows 10, Ubuntu 18.04):
• Link to your project:
• Link to your CI build (if appropriate):
  Not relevant.

[arturcic]

Fixed in #3457

[arturcic]

🎉 This issue has been resolved in version 6.0.0-beta.3 🎉
The release is available on:

• GitHub Release
• Chocolatey Package
• .Net Global Tool

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