fix: add prompt to examples

messages/password.generate.json

@@ -1,11 +1,11 @@
 {
   "description": "generate a password for scratch org users\nGenerates and sets a random password for one or more scratch org users. Targets the usernames listed with the --onbehalfof parameter or the --targetusername parameter. Defaults to the defaultusername.\n\nIf you haven’t set a default Dev Hub, or if your scratch org isn’t associated with your default Dev Hub, --targetdevhubusername is required.\n\nTo change the password strength, set the --complexity parameter to a value between 0 and 5. Each value specifies the types of characters used in the generated password: \n\n0 - lower case letters only\n1 - lower case letters and numbers only\n2 - lower case letters and symbols only\n3 - lower and upper case letters and numbers only\n4 - lower and upper case letters and symbols only\n5 - lower and upper case letters and numbers and symbols only \n\nTo see a password that was previously generated, run \"sfdx force:user:display\".",
   "examples": [
-    "sfdx force:user:password:generate",
-    "sfdx force:user:password:generate -l 12",
-    "sfdx force:user:password:generate -c 3",
-    "sfdx force:user:password:generate -u [email protected] --json",
-    "sfdx force:user:password:generate -o \"[email protected],[email protected],[email protected]\""
+    "$ sfdx force:user:password:generate",
+    "$ sfdx force:user:password:generate -l 12",
+    "$ sfdx force:user:password:generate -c 3",
+    "$ sfdx force:user:password:generate -u [email protected] --json",
+    "$ sfdx force:user:password:generate -o \"[email protected],[email protected],[email protected]\""
   ],
   "flags": {
     "onBehalfOf": "comma-separated list of usernames or aliases to assign the password to",