add jan and simon to contributors

I added profile and photo for Jan Galinski and Simon Zambrovski to the contributors section.
Also added the holisticon logo to the partner column.

I placed Simon and me left and right to Rafael to avoid building a "holisticon block".
Update team.html.eco

Updated the text.
Update team.html.eco

Reduced text.
shorten profil simon z

Simons profile was quiet long so we shortened it to fit the modal window dimensions.
Merge pull request #10 from holisticon/master

add Simon Z and Jan G (Holisticon) to contributors page