providers: Add ari.lt
I'd like to add the ari.lt provider to providers.xmpp.net. The CONTRIBUTING document does not exactly specify what i have to put here so i'm just going to leave it like this.
I'd like to add the ari.lt provider to providers.xmpp.net. The CONTRIBUTING document does not exactly specify what i have to put here so i'm just going to leave it like this.