Consider functionality to push text file to a remote location

[matt-dray]

Currently the text file of jottings exists wherever the user wanted, probably locally. It might be smart to build functionality to push it easily to GitHub or elsewhere. But bear in mind this tool aims to be 'minimal' and maybe this could just be the responsibility of the user.

[matt-dray]

Maybe an option like --with-git to set up a version-controlled folder that contains the jot.txt.