md file add hyperlink code example
Example 1: how to create link in readme.md
[a link] (https://github.com/user/repo/blob/branch/other_file.md)
Example 2: add link in md
[link to google](https://www.google.com)
[a link] (https://github.com/user/repo/blob/branch/other_file.md)
[link to google](https://www.google.com)