change -i to -s in user guide when needed

3 jobs for master in 1 minute and 5 seconds
Status Name Job ID Coverage
  Py35
passed test-py3.5 #24085

00:00:20

91.0%
 
  Py36
passed test-py3.6 #24086

00:00:23

91.0%
 
  Py37
passed test-py3.7 #24087

00:00:21

91.0%