Broken link in docs

[jdaviescoates]

I just went to https://git.cloudron.io/cloudron/docs/-/blob/master/knowledgebase/docs/apps/pixelfed.md to try and contribute a fix to this directly there, but it wouldn't let me fork the project so I guess I need my permissions changing on there.

Anyway, in the current Cloudron Pixelfed Docs there is a broken link to https://docs.pixelfed.org/running-pixelfed/administration.html#admin-user which should probably just be replaced with a link to https://docs.pixelfed.org/ or https://docs.pixelfed.org/running-pixelfed/administration/

[girish]

@jdaviescoates thanks, fixed the link.

[girish]

@jdaviescoates Fixed up your gitlab permissions as well.