doc, cosmetics, use ``` blocks for syntax highlighted markdown

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
doc, provide FAQ explaining the difference to 0mq

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
doc, chore, add build status to README.md

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'doc/general' into next

* doc/general:
  doc, chore, add build status to README.md
  doc, provide FAQ explaining the difference to 0mq
  doc, cosmetics, use ``` blocks for syntax highlighted markdown