man: add missing --add-runtime

Signed-off-by: Antonio Murdaca <runcom@redhat.com>
(cherry picked from commit 585332dfe0b4b38f428deb680086b6d69275100d)
Signed-off-by: Tibor Vass <tibor@docker.com>

docs/reference/commandline/dockerd.md

@@ -17,6 +17,7 @@ weight = -1
     A self-sufficient runtime for linux containers.
 
     Options:
+      --add-runtime=[]                       Register an additional OCI compatible runtime
       --api-cors-header=""                   Set CORS headers in the remote API
       --authorization-plugin=[]              Set authorization plugins to load
       -b, --bridge=""                        Attach containers to a network bridge
@@ -60,7 +61,6 @@ weight = -1
       -p, --pidfile="/var/run/docker.pid"    Path to use for daemon PID file
       --raw-logs                             Full timestamps without ANSI coloring
       --registry-mirror=[]                   Preferred Docker registry mirror
-      --add-runtime=[]                       Register an additional OCI compatible runtime
       -s, --storage-driver=""                Storage driver to use
       --selinux-enabled                      Enable selinux support
       --storage-opt=[]                       Set storage driver options

man/dockerd.8.md

@@ -6,6 +6,7 @@ dockerd - Enable daemon mode
 
 # SYNOPSIS
 **dockerd**
+[**--add-runtime**[=*[]*]]
 [**--api-cors-header**=[=*API-CORS-HEADER*]]
 [**--authorization-plugin**[=*[]*]]
 [**-b**|**--bridge**[=*BRIDGE*]]
@@ -75,6 +76,9 @@ format.
 
 # OPTIONS
 
+**--add-runtime**=[]
+  Set additional OCI compatible runtime.
+
 **--api-cors-header**=""
   Set CORS headers in the remote API. Default is cors disabled. Give urls like "http://foo, http://bar, ...". Give "*" to allow all.