Fixing spelling in "contributors" guide

1 job for redesign-proposal in 49 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Publish
failed #1509
publish:wip

00:00:49

 
Name Stage Failure
failed
publish:wip Publish
  Static files     |  8 |  8  
Processed images | 0 | 0
Aliases | 4 | 3
Sitemaps | 2 | 1
Cleaned | 0 | 0

Total in 38 ms
./deploy-test.sh: line 12: rsync: command not found
ERROR: Job failed: exit code 1