Update docs.adoc

1 job for master in 18 seconds (queued for 1 second)
Status Name Job ID Coverage
  Deploy
failed deploy #762

00:00:18

 
Name Stage Failure
failed
deploy Deploy There is an unknown failure, please try again
   999624e..7c9b472  master     -> origin/master
Checking out 7c9b472c as master...
Skipping Git submodules setup
$ make
mkdir -p dist/latest/
asciidoctor -a docinfo -a stylesheet! -o dist/latest/index.html content.adoc
$ rsync
/bin/bash: line 56: rsync: command not found
ERROR: Job failed: exit code 1