DOC: fix alphabetical order of "show commands" in management.txt

"show acl" and "show backend" were misplaced.
diff --git a/doc/management.txt b/doc/management.txt
index df091bb..5a5e093 100644
--- a/doc/management.txt
+++ b/doc/management.txt
@@ -1715,6 +1715,17 @@
   "admin". Both the backend and the server may be specified either by their
   name or by their numeric ID, prefixed with a sharp ('#').
 
+show acl [<acl>]
+  Dump info about acl converters. Without argument, the list of all available
+  acls is returned. If a <acl> is specified, its contents are dumped. <acl> if
+  the #<id> or <file>. The dump format is the same than the map even for the
+  sample value. The data returned are not a list of available ACL, but are the
+  list of all patterns composing any ACL. Many of these patterns can be shared
+  with maps.
+
+show backend
+  Dump the list of backends available in the running process
+
 show cli sockets
   List CLI sockets. The output format is composed of 3 fields separated by
   spaces. The first field is the socket address, it can be a unix socket, a
@@ -1798,9 +1809,6 @@
     is the slash ('/') in header name "header/bizarre", which is not a valid
     HTTP character for a header name.
 
-show backend
-  Dump the list of backends available in the running process
-
 show info [typed|json]
   Dump info about haproxy status on current process. If "typed" is passed as an
   optional argument, field numbers, names and types are emitted as well so that
@@ -1915,14 +1923,6 @@
   are not directly a list of available maps, but are the list of all patterns
   composing any map. Many of these patterns can be shared with ACL.
 
-show acl [<acl>]
-  Dump info about acl converters. Without argument, the list of all available
-  acls is returned. If a <acl> is specified, its contents are dumped. <acl> if
-  the #<id> or <file>. The dump format is the same than the map even for the
-  sample value. The data returned are not a list of available ACL, but are the
-  list of all patterns composing any ACL. Many of these patterns can be shared
-  with maps.
-
 show pools
   Dump the status of internal memory pools. This is useful to track memory
   usage when suspecting a memory leak for example. It does exactly the same