Add CONTRIBUTING.md

[koppor]

I would like to know how to contribute. The README.md says, this is auto generated. In https://github.com/lokal-ninja/ln-base, I don't find data.

In anderen repos finde ich .yml and .md

In https://github.com/lokal-ninja/baden-wuerttemberg/tree/master/data/cities/sindelfingen würde ich gerne folgenden Datensatz hinzufügen, bin mir aber nicht sicher wie und ob die dann überschrieben werden. https://www.konditorei-frank.de/

[midzer]

Hi and thanks for your interest, @koppor

Shoogle's preprocessing fetches data directly from OSM .pbf files. Those region repos are only to keep data in public. So, if you want to modify/extend it's data, you have to edit the OSM directly.

[koppor]

Thus, my request persists. Maybe with that text and some links to OSM? (I never contributed to it)

[midzer]

Good idea.

Feel free to open a PR in https://github.com/lokal-ninja/ln-base which is the main repo for Shoogle and linked in all region repos.