fix: improve example

To show which is the new sandbox, and which is the one you're cloning from. Also added more info to description.

Author: jshackell-sfdc

messages/clone.json

@@ -1,9 +1,9 @@
 {
   "success": "The sandbox org cloning process %s is in progress. Run \"sfdx force:org:status -n %s\" to check for status. If the org is ready, checking the status also logs the requesting user in to the sandbox org and authorizes the org for use with Salesforce CLI.",
-  "description": "clone a sandbox org\nThere are two ways to clone a sandbox: either specify a sandbox definition file or provide key=value pairs at the command line. Key-value pairs at the command-line override their equivalent sandbox definition file values. In either case, you must specify both the \"SandboxName\" and \"SourceSandboxName\" options. \n\nSet the --targetusername (-u) parameter to a production org with sandbox licenses. The --type (-t) parameter is required and must be set to \"sandbox\".",
+  "description": "clone a sandbox org\nThere are two ways to clone a sandbox: either specify a sandbox definition file or provide key=value pairs at the command line. Key-value pairs at the command-line override their equivalent sandbox definition file values. In either case, you must specify both the \"SandboxName\" and \"SourceSandboxName\" options to set the names of the new sandbox and the one being cloned, respectively. \n\nSet the --targetusername (-u) parameter to a production org with sandbox licenses. The --type (-t) parameter is required and must be set to \"sandbox\".",
   "examples": [
     "$ sfdx force:org:clone -t sandbox -f config/dev-sandbox-def.json -u prodOrg -a MyDevSandbox",
-    "$ sfdx force:org:clone -t sandbox SandboxName=DevSbx1 SourceSandboxName=Sbx2Clone -u prodOrg -a MyDevSandbox"
+    "$ sfdx force:org:clone -t sandbox SandboxName=NewClonedSandbox SourceSandboxName=ExistingSandbox -u prodOrg -a MyDevSandbox"
   ],
   "flags": {
     "type": "type of org to create",