docs: add issue template in github config

[mathild3r]

• [ ] Tests written and linted ℹ︎
• [x] Documentation written in Wiki/README
• [x] Commit history is tidy & follows Contributing guidelines ℹ︎

What this does

add issue template in the github config

[aarlaud]

:tada: This PR is included in version 1.6.5 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: