Improve US Hitchwiki

[tillwenke]

Hitchhiking (at least online) does not seem very strong.

Let's check if at least Hitchwiki can present information better for this part of the world.

E.g. these do not look too good:

• https://hitchwiki.org/en/California

[leon-wbr]

This seems like a great thing to build a task force around, maybe have someone organize a hitchhiking race over there. 😄