Use the correct tagline in the docs overview
The one-liner on http://open.qa/documentation/ doesn't match the sentence on the index page:
openQA is an automated test tool that makes possible to test the whole installation process of an operating system in a wide combination of software and hardware configurations.
openQA is an automated test tool for operating systems and the engine at the heart of openSUSE's automated testing initiative.
The latter sentence is also being used elsewhere, though not necessarily in a fashion that suggests it is the tagline.
- AC1: The same tagline is used in all mentioned places
- Find all current definitions, compare and decide which one is best, e.g. lead vote in team
- Update all references with same definition or reduce places with the (duplicate) definition