Announcing the WakaTime Integration

[dreeves]

### Desiderata
- [ ] Have someone read a draft
- [x] Keywords/tags
- [x] Title image
- [ ] Link preview excerpt
- [x] Publish
- [ ] Blog blurbs
- [ ] Waggledance
- [ ] Tweet
- [ ] Tip of the day

Cognata

• https://help.beeminder.com/article/357-wakatime?preview=65fd26dca1cf5c2376ee5fc3
• https://github.com/beeminder/beeminder/issues/322

Verbata: new autodata integrations, coding,

[bsoule]

Screenshots for hotlinking from help doc (and maybe the blog post too?):

logo:

plus:

elf:

goalname:

graph:

[dreeves]