Docker checks

docs/20_Checks/check_docker_info.md

@@ -37,7 +37,7 @@ If DOCKER_HOST is not set then the docker socket is detected from a running dock
 ______________________________________________________________________
 
 CHECK_DOCKER_INFO
-v1.3
+v1.4
 
 (c) Institute for Medical Education - University of Bern
 Licence: GNU GPL 3
@@ -49,7 +49,7 @@ Show docker version and count of containers total and by its status.
 
 It returns 
   CRITICAL if a created container is not running.
-  OK if no container was created yet or all conmtainers are running
+  OK if no container was created yet or all conmtainers are running.
   UNKNOWM if
     - docker or jq were not found
     - docker data were not fetched
@@ -61,11 +61,20 @@ USAGE:
   check_docker_info [OPTIONS]
 
 OPTIONS:
+
+  General:
   -h, --help        this help
-  -c, --containers  Flag: Show containers (slow)
-  -e, --errors      Flag: Show containers on error only (slow)
   -d, --debug       Debug; Flag: show all docker system infos
+
+  Connect to docker:
   -p, --path        Custom directory for docker binary
+  -t, --target      Custom docker target; value for DOCKER_HOST
+                    Needed only if Docker does not run on a unix socket or
+                    multiple users run a rootless docker daemon.
+
+  Flags:
+  -c, --containers  Flag: Show containers (slow)
+  -e, --errors      Flag: Show containers on error only (slow)
 
 EXAMPLES:
   check_docker_info