keep avatar images in one row

[peterstadler]

so they are still having the full height

[peterstadler]

A bit more explanation and thoughts: The current linebreak (before the last avatar icon) occurs because of the default setting of contrib.rocks which is 12. See available options:

max={number} 
  Max contributor count (100 by default)
columns={number} 
  Max columns (12 by default)
anon={0|1}
  Include anonymous users (false by default)

We might add max and set it to the same value as columns to prevent a linebreak completely, on the other hand I think I prefer a linebreak over hiding new contributors. That said, we could probably set columns to a much higher value than 20 (as I set it now) to be future proof. Or we could react to it accordingly when we hit the limit of 20 …