This repository has no issue template for documentation problems

[alice-i-cecile]

This is unfortunate because:

1. It gives the impression that documentation fixes should not be submitted here, or are not welcome.
2. It prevents you from gathering commonly requested information (link to docs, rust version number, suggested fixes) in an automatic fashion.
3. It prevents automatic labelling for documentation-relevant issues.

To fix this, add a new issue template.

[Rageking8]

@rustbot label A-meta

@rustbot claim