* Add workflow file to run PR labeler and corresponding configuration file
I'm using my personal fork of https://github.com/actions/labeler because
I could not any labeling action that checked whether a file was added or
changed (or removed).
* Fix typo in Labeler action configuration file
* Add Pull Request template
* Use multiple issue templates
* Add item about referencing issues in the Pull Request template
* Update issue templates based on suggestions by @birjolaxew
* Update issue templates based on suggestions by @birjolaxew
* Combine package and website template
* Update Pull Request template
Co-Authored-By: Johan Fagerberg <birjolaxew@users.noreply.github.com>
* Change template style for pull requests
* Add "etc." to lists of examples