rm docs folder

[maelle]

since the docs are built by rOpenSci (well #62). Happy to answer questions!

[micha-silver]

Hi @maelle
Thanks! So Where should I put the CONTRIBUTING.md, if not in docs?

[maelle]

under .github/ is where GitHub finds it (and pkgdown too)

[maelle]

@micha-silver @oggioniale friendly reminder (I'm investigating the rotemplate error you reported hence my looking at the package 😸)

[oggioniale]

Dear @maelle thanks!
We are also evaluating other issues especially:

• resolving issues related to the rgeos library in favour of sf/terra etc.;
• decreasing the number of packages loaded at installation;
• updating the tag from %>% to >|