Find all links

Example Usage

$ python find_all_links.py https://github.com
https://github.githubassets.com
https://avatars0.githubusercontent.com
https://avatars1.githubusercontent.com
https://avatars2.githubusercontent.com
https://avatars3.githubusercontent.com
https://github-cloud.s3.amazonaws.com
https://user-images.githubusercontent.com/
https://github.githubassets.com/assets/frameworks-next-33eaceaeba85d4949f45eb897becf7b5.css
https://github.githubassets.com/assets/site-next-7dbb92872a8f95d6138b81f09e806b04.css