added small section making explicit the working directory you must be in when...

added small section making explicit the working directory you must be in when running antora generate on playbooks with relative content url paths [#654]
3 jobs for 654-update-relative-url-build-docs in 4 minutes and 13 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Init
passed #635277435
yarn

00:01:14

 
  Verify
passed #635277436
lint

00:01:12

passed #635277437
test

00:02:58