use::checking description

[Benjamin Mesing]

> Here's a simple patch which adds a description to use::checking. The
> verb "checking" is a very vague verb and many activities could be
> described as "checking", but most of the packages I saw with this tag
> fit a very specific concept. This is my attempt to put the concept
> into words. Is this the intended use? There are many packages with
> this tag that don't obviously fit, but that could be because I don't
> know the packages well enough. 

Thanks, I've commited a slightly modified patch:
         Tag: use::checking
         Description: Checking
        + All sorts of checking, checking a filesystem for validity, checking
        + a document for incorrectly spelled words, checking a network for
        + routing problems. Verifying.

        
Regards Ben