update (#2)

* removed Clients-Link in About us
Merge pull request #1 from klick/develop-d

update (#2)
update (#2)

* removed Clients-Link in About us
* happy
Merge remote-tracking branch 'upstream/develop-d' into develop-d

Conflicts:
	index.html
update (#3)

* happy
Merge pull request #3 from klick/develop-d

happy
introtext
introtext
header

- hgroup width
- text
header

+ font: Merriweather
+ h3: font-size, line-height, …
+ color changes
+ adress: position & font