Title is not unhex-ed in onebox-ed github file link

For example, it should display:

emacs-china/hello-emacs/blob/master/Emacs编辑程序常用命令.org

instead of unreadable %XX:

「いいね!」 5

Hmm yes that could be improved cc @techAPJ can you add this to your list low priority.

「いいね!」 2

Adding pr-welcome as well in case someone from the community wants to pick it up before @techapj (let us know if you are taking this)

「いいね!」 4

Fixed via:

「いいね!」 3