Revert "doc: Fix the documentation of the `alt_dirs` option"
Revert "doc: Fix the documentation of the `alt_dirs` option"

This reverts commit ef88b283921866bb067c219de4c84237bac1b8a3.

danr/kakoune,jkonecny12/kakoune,jjthrash/kakoune,occivink/kakoune,jjthrash/kakoune,lenormf/kakoune,alexherbo2/kakoune,Somasis/kakoune,alexherbo2/kakoune,casimir/kakoune,Somasis/kakoune,Somasis/kakoune,jkonecny12/kakoune,occivink/kakoune,casimir/kakoune,jkonecny12/kakoune,occivink/kakoune,mawww/kakoune,danr/kakoune,lenormf/kakoune,casimir/kakoune,alexherbo2/kakoune,jjthrash/kakoune,Somasis/kakoune,lenormf/kakoune,jkonecny12/kakoune,lenormf/kakoune,casimir/kakoune,danr/kakoune,mawww/kakoune,danr/kakoune,occivink/kakoune,jjthrash/kakoune,mawww/kakoune,alexherbo2/kakoune,mawww/kakoune