change -i to -s in user guide when needed

3 jobs for master in 58 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Py35
passed #24092
test-py3.5

00:00:19

91.0%
 
  Py36
passed #24093
test-py3.6

00:00:19

91.0%
 
  Py37
passed #24094
test-py3.7

00:00:18

91.0%