Fix doc execute-command

doc/12-icinga2-api.md

@@ -1548,7 +1548,7 @@ Send a `POST` request to the URL endpoint `/v1/actions/execute-command`.
   command_type  | String     | **Optional.** The command type: `CheckCommand` or `EventCommand` or `NotificationCommand`. Default: `EventCommand`
   command       | String     | **Optional.** The command to execute. Its type must the same as `command_type`. It can be a macro string. Default: depending on the `command_type` it's either `$check_command$`, `$event_command$` or `$notification_command$`   
   endpoint      | String     | **Optional.** The endpoint to execute the command on. It can be a macro string. Default: `$command_endpoint$`.
-  macros        | Dictionary | **Optional**. A serialized object used to resolve the macro strings. It overrides also macros of other parameter. e.g. {"http_ssl": false}. Default: `{}` 
+  macros        | Dictionary | **Optional**. Macro overrides. Default: `{}` 
   user          | String     | **Optional.** The user used for the notification command. 
   notification  | String     | **Optional.** The notification used for the notification command.
   
@@ -1558,6 +1558,9 @@ Send a `POST` request to the URL endpoint `/v1/actions/execute-command`.
   $ curl -k -s -S -i -u root:icinga -H 'Accept: application/json' \
    -X POST 'https://localhost:5665/v1/actions/execute-command' \
    -d '{"type": "Service", "service": "agent!custom_service", "ttl": 15, "macros": { "command_endpoint": "master", "ls_dir": "/tmp/foo" }, "command": "custom_command", "command_type": "CheckCommand" }'
+```
+
+```
   {
       "results": [
           {