Activating Open Collective (#3821)
Activating Open Collective (#3821)

* Added backers and sponsors on the README

* Added call to donate after npm install (optional)

* Remove npm changes

* Update readme to leave only needed sections

sapk-fork/gitea,lunny/gitea,lafriks/gitea,tboerger/gitea,Bwko/gitea,tboerger/gitea,dnmgns/gitea,lunny/gitea,typeless/gitea,dnmgns/gitea,vdbt/gitea,typeless/gitea,typeless/gitea,vCaesar/gitea,lafriks/gitea,sapk-fork/gitea,cez81/gitea,cez81/gitea,Bwko/gitea,kjellkvinge/gitea,kjellkvinge/gitea,go-gitea/gitea,kubatyszko/gitea,vdbt/gitea,kjellkvinge/gitea,Bwko/gitea,kubatyszko/gitea,dnmgns/gitea,vCaesar/gitea,go-gitea/gitea,sapk-fork/gitea,lafriks/gitea,kubatyszko/gitea,typeless/gitea,cez81/gitea,go-gitea/gitea,sapk-fork/gitea,tboerger/gitea,lunny/gitea