v0.0.43 Improve 'icite --print_keys' documentation

What's Changed

• renamed x, y, z in YEAR/citations/references section #51 by @scbarrera in #52
• Approved @scbarrera's PR by @dvklopfenstein in #53

New Contributors

• @scbarrera made their first contribution in #52

Thank you so much @scbarrera for your PR.
Thank you @Raefcon for opening issue #50 to begin working on a new PR.

Full Changelog: v0.0.42...v0.0.43