The Publish My Work section of the Twine 2 Guide contains information about this topic, basically you can either.
1. Upload it to a web-site, either your own or someone else's.
2. Create an archive (ZIP, RAR, etc) file containing the Story HTML files (as well as any image, sound, and video files it references) and then upload the archive file to a file hosting site.
Comments
1. Upload it to a web-site, either your own or someone else's.
2. Create an archive (ZIP, RAR, etc) file containing the Story HTML files (as well as any image, sound, and video files it references) and then upload the archive file to a file hosting site.