chore(docs): Prettify notes and add dates (#3434)

docs/tutorials/check-aliases.md

@@ -1,19 +1,19 @@
 # Check Aliases
 
 Prowler allows you to use aliases for the checks. You only have to add the `CheckAliases` key to the check's metadata with a list of the aliases:
-
-    "Provider": "<provider>",
-    "CheckID": "<check_id>",
-    "CheckTitle": "<check_title>",
-    "CheckAliases": [
-      "<check_alias_1>"
-      "<check_alias_2>",
-      ...
-    ],
-    ...
-
+```json title="check.metadata.json"
+"Provider": "<provider>",
+"CheckID": "<check_id>",
+"CheckTitle": "<check_title>",
+"CheckAliases": [
+  "<check_alias_1>"
+  "<check_alias_2>",
+  ...
+],
+...
+```
 Then, you can execute the check either with its check ID or with one of the previous aliases:
-```console
+```shell
 prowler <provider> -c/--checks <check_alias_1>
 
 Using alias <check_alias_1> for check <check_id>...