Finalize the first release

[sfcheung]

Just an issue to mark the end of the milestone "first release for public testing" (https://github.com/sfcheung/semfindr/milestone/1).

To-Do

• [x] Proofread all help pages
• [x] Proofread all vignettes
• [x] Run devtools::check()
• [x] Push to main (1f0762e6492cd3388fbbbf80f9b5b225a9e0b937)