But this goes back to notablility. Wikipedia's policies are to cover content that is notable. It sounds like what you are looking for is discoverability. GitHub

But this goes back to notablility. Wikipedia's policies are to cover content that is notable. It sounds like what you are looking for is discoverability. GitHub already does this. People are making, sharing, and forking "awesome lists". You can make a PR to learnxiny's languages list. Wikia will vendor lock and host your programming language dedicated mediawiki for free. Mediawiki is free and open source software that powers Wikipedia that you can run on almost any cpanel based web host.