Cherrypick multiple doc changes into 5.4 (forward and backports)#4240

Merged

ruflin merged 7 commits intoelastic:5.4from dedemorton:cherrypick_docs_05.05.17_5.4

May 8, 2017

+29-12

Commits on May 6, 2017

Fix typo in port number (elastic#4139 )

marius-dr
authored and
dedemorton
committed
[elastic#4154 ] Wrong "make collect" statement documented instead of "make update" when documentation should be regenerated (elastic#4155 )

christiangalsterer
authored and
dedemorton
committed
Add info about official Beats docker image
dedemorton
committed
Replace wrong command (chown) with chmod (elastic#4194 )

drpaneas
authored and
dedemorton
committed
Update overview.asciidoc (elastic#4195 )

markwalkom
authored and
dedemorton
committed
Update how-filebeat-works.asciidoc (elastic#4196 )

markwalkom
authored and
dedemorton
committed
Update how-filebeat-works.asciidoc (elastic#4199 )

fenngwd
authored and
dedemorton
committed