docs/cmd-list: add languages to code blocks

Change-Id: Ie9f83068bd0a313b191b7ffa7dca4f946488496c

src/main/resources/Documentation/cmd-list.md

diff --git a/src/main/resources/Documentation/cmd-list.md b/src/main/resources/Documentation/cmd-list.md
index e815e08..b0a8254 100644
--- a/src/main/resources/Documentation/cmd-list.md
+++ b/src/main/resources/Documentation/cmd-list.md
@@ -7,7 +7,7 @@
 
 SYNOPSIS
 --------
-```
+```console
 ssh -p @SSH_PORT@ @SSH_HOST@ @PLUGIN@ list
   [--remote <PATTERN>]
   [--detail]
@@ -44,25 +44,25 @@
 --------
 List all destinations:
 
-```
+```console
   $ ssh -p @SSH_PORT@ @SSH_HOST@ @PLUGIN@ list
 ```
 
 List all destinations detail information:
 
-```
+```console
   $ ssh -p @SSH_PORT@ @SSH_HOST@ @PLUGIN@ list --detail
 ```
 
 List all destinations detail information in json format:
 
-```
+```console
   $ ssh -p @SSH_PORT@ @SSH_HOST@ @PLUGIN@ list --detail --json
 ```
 
 List destinations whose name contains mirror:
 
-```
+```console
   $ ssh -p @SSH_PORT@ @SSH_HOST@ @PLUGIN@ list --remote mirror
   $ ssh -p @SSH_PORT@ @SSH_HOST@ @PLUGIN@ list --remote ^.*mirror.*
 ```