Added issue / pull request templates

[hamsternik]

Motivation

As far as I used .dotfiles, I for a very long term just use that repo. Don't create issues for some new feature/update. Don't create pull requests, don't use any git or any other flow how to work on issues (actually, don't have last one). Also I don't have a quite good README about how to set up all my dotfiles on any free machine. A few times ago it has been started to embarrass me. I guess any repo should be conducted as good as possible: issues, pull request, multiple branches, normal releases, milestones, etc. So, it's time to change that!

What Should Be Done

• Look at GitHub issue templates.
• Read an article on Medium about improving GitHub repo workflow.
• Added template for creating issue (.md file at .github folder).
• Added template for creating pull request (.md file at .github folder).

[hamsternik]

Status: Won't Do Reason: Work On The Repo Alone ...