Add Arch to installation in README

Make code more readable

The code has become more readable with better formatting and comments.

Improve README formatting and use `kbd` tag

Set indentation level to 4

Merge pull request #1 from amarakon/add-license-1

Change LICENSE to AGPL-3

made file names with brackets always work

fixed bug with options

updated usage instructions

added preview gif

notified users that my project is finished