Small docs tweaks

... while reading.
Do doc tweaks on source instead
Merge branch 'master' of https://github.com/tomtom/vikitasks_vim

Added doc for Alarms, added some missing colons.

vikitasks.txt contains a bad merge ('groupnone') which should be fixed
when regenerated.

Conflicts:
	doc/vikitasks.txt
	plugin/vikitasks.vim
Typo
We're using N for [count], right?
Consider [count]

I'm not exactly sure what [count] signifies here.

It was not being passed to vikitasks#... function, but it was being
mentioned. I guess if it's mentioned, it should be passed. What
exactly does it do?
docs