Fix the links between the documentation files

geoclue/geoclue#78
3 jobs for bug_78 in 11 minutes and 55 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #18558
ubuntu-16.04

00:11:01

passed #18559
ubuntu-17.10

00:11:54

passed #18560
ubuntu-18.04

00:11:39