Cross-mention next-wednesday

[finom]

Hello! I work on a similar library https://github.com/finom/next-wednesday and mentioned your solution in the README. Would be nice if you could also mention next-wednesday as an alternative project. Let me know if you're OK with that and I'll prepare a PR (if you don't want to do that by yourself).

[tzkmx]

@finom Interesting alternative, the project has advanced a lot!