~/.gitconfig: Add `git recent-tags` command/shortcut

I use this pretty often to find out the last few releases.

.gitconfig

	lol = log --pretty=oneline --abbrev-commit --graph --decorate
	ba = branch -a
	praise = blame
	recent-tags = ! sh -c 'git tag --sort=-version:refname | head -n5'
[format]
	pretty = %C(magenta)%h%Creset %Cgreen[%cr]%Creset (%an) %s
[color]