Add "Web directory" website to Public Services

[Filarius]

There is website whats have list of other websites in the Yggdrasil
http://[300:529f:150c:eafe::1]/
Its do automatic collection of websites what support Wyrd DNS, and allow manual add.
I think it will be usefull to have it too at https://yggdrasil-network.github.io/services.html