Update title to make it more specific
Update title to make it more specific

* Make title more specific and less confusing
* Update description to be in line too

This page helps the developer make a choice between Lock and authentication libraries, in the context of customizing the Universal Login page, not for building custom embedded login UIs.
yvonnewilson/docs,jeffreylees/docs,yvonnewilson/docs,auth0/docs,jeffreylees/docs,yvonnewilson/docs,jeffreylees/docs,auth0/docs,auth0/docs