If you are working for a client, most of the time when you are done with a project you will just zip up the responsive pattern library and send it over. It's then the client's job to host the library and make sure the right employees have access to it. If you are working on a personal project, though, you should consider putting your library online to share. This may be intimidating, but I believe this industry is so great majorly because we are constantly sharing ideas and their execution freely.
If you choose to do this, there are many different ways you can host your library: