fix some links and typo

8 jobs for fix-CONTRIBUTING in 6 minutes and 6 seconds (queued for 1 second)
Status Job ID Name Coverage
  Review
manual #11317
funkwhale-review allowed to fail manual
review_docs
manual #11315
funkwhale-review allowed to fail manual
review_front
manual #11318
funkwhale-review allowed to fail manual
stop_docs_review
manual #11316
funkwhale-review allowed to fail manual
stop_front_review
 
  Lint
passed #11319
black

00:00:32

passed #11320
flake8

00:00:36

 
  Test
passed #11321
docker
test_api

00:05:29

passed #11322
docker
test_front

00:01:34