chore: update readme link to docs site and PR template

[andrablaj]

Description

Update README link to the docs site. Update PR template.

Code review checklist

• [ ] Readable: Concise, well named, follows the style guide, documented if necessary.
• [ ] Documented: Configuration and user documentation on cht-docs
• [ ] Tested: Unit and/or e2e where appropriate
• [ ] Backwards compatible: Works with existing data and configuration or includes a migration. Any breaking changes documented in the release notes.

License

The software is provided under AGPL-3.0. Contributions to this project are accepted under the same license.

[andrablaj]

@lorerod, can you please have a look at this tiny PR when you have time. I also updated the aliases on the docs site so the links won't be broken anymore.

[medic-ci]

:tada: This PR is included in version 1.1.4 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: