Add a hint
s/proces/\0s/
Slight clarification in the problem text for the pagerank lab

Signed-off-by: Christian Söderberg <Christian.Soderberg@cs.lth.se>
Merge pull request #3 from erikw/master

s/proces/\0s/
Merge pull request #5 from christian-soderberg/pagerank-clarification

Slight clarification in the problem text for the pagerank lab
Merge remote-tracking branch 'origin/master'

And some spacing in math.