DOC: configuration: more details about the master-worker mode

Add more details about the master-worker mode in the "master-worker"
global keyword.

Should fix issue #2198.

(cherry picked from commit 419b79492a2ae8c9323b907b9d2da85c1208c372)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit ea62653f9b4a90f3841cfa8cfa9e07a5172c88f2)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 6f07facf17ccfb26513a858fd5b32faf46bd24b7)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed