Changelog entry for v0.2.1

[seisman]

Description of proposed changes

Preview: https://pygmt-git-changelog-v021.gmt.vercel.app/changes.html

For reference, the previous changelog is at #599.

Changelog made by following the instructions at https://github.com/GenericMappingTools/pygmt/blob/master/MAINTENANCE.md#updating-the-changelog. The changelog itself includes the following sections:

• Highlights
• New features
• Enhancements
• Documentation
• Bug fixes
• Maintenance
• List of Contributors (sorted by number of commits)

TODO:

• Format Pull Request links using sed -i.bak -E 's$\(#([0-9]*)\)$(`#\1 <https://github.com/GenericMappingTools/pygmt/pull/\1>`__)$g' changes.rst
• Add Zenodo DOI link once it's reserved.
• Add a new entry in doc/_static/version_switch.js for documentation switcher
• Update citation information https://github.com/GenericMappingTools/pygmt#citing-pygmt
• Set release date

Reminders

• Run make format and make check to make sure the code follows the style guide.
• Add tests for new features or tests that would have caught the bug that you're fixing.
• Add new public functions/methods/classes to doc/api/index.rst.
• Write detailed docstrings for all functions/methods.
• If adding new functionality, add an example to docstrings or tutorials.

Notes

• You can write /format in the first line of a comment to lint the code automatically

[seisman]

@weiji14 I've drafted a changelog for v0.2.1 release. Please see if you want to make some changes.

[seisman]

@carocamargo Thanks again for your contribution to the PyGMT project. We're going to release PyGMT v0.2.1 soon. Please let us know if you want to use the github username or real name here.

[weiji14]

Btw, If you want your name to be on the author list at Zenodo (https://zenodo.org/record/4025418), please also open up a Pull Request to add your name to https://github.com/GenericMappingTools/pygmt/edit/master/AUTHORS.md (and provide us with your ORCID and affiliation). Also cc @hemmelig on this.

[weiji14]

@seisman, I think we can go on and finish off this PR and cut a release. Could you run the sed command and handle these two tasks in this PR too?

• Add a new entry in doc/_static/version_switch.js for documentation switcher
• Update citation information https://github.com/GenericMappingTools/pygmt#citing-pygmt

[weiji14]

Suggested change

	* Add an example for different line styles (#604, #664)
	* Add an example for different line styles (`#604 <https://github.com/GenericMappingTools/pygmt/pull/604>`__, `#664 <https://github.com/GenericMappingTools/pygmt/pull/664>`__)

[seisman]

Nice catch. I believe it also means we should update our sed command.

[seisman]

FYI, I also updated the release draft information at https://github.com/GenericMappingTools/pygmt/releases/tag/untagged-835457ed8c763a4fb621.