IBX-9107 Changed after PR comments.

Author: nkostiv

docs/personalization/tracking_with_ibexa-tracker.md

@@ -21,11 +21,13 @@ into your pages.
 It activates the tracking by inserting <https://cdn.perso.ibexa.co/ibexa-tracker.js> or
 <https://cdn.perso.ibexa.co/ibexa-tracker.min.js> into the page.
 
-To use this mechanism on your pages, copy the code snippet below, and replace 
-`<YOUR_MANDATOR_ID>` with the customer ID, `<PAGE_ID>` with the page/item identifier.
-`<USER_ID>` - empty string for cookie based anonymous user or replaced with the value generated
-by your user identifier system for logged-in user. In case user activity should not be tracked,
-'not_defined' value should be used to still have an event stored without link to the user.
+To use this mechanism on your pages, copy the code snippet below, and replace: 
+- `<YOUR_MANDATOR_ID>` with the customer ID
+- `<CONTENT_TYPE_ID>` with the Content Type ID
+- `<CONTENT_ID>` with the content item ID
+- `<USER_ID>` with an empty string for cookie based anonymous user or with the value generated by
+your user identifier system for logged-in user. In case user activity should not be tracked,
+'not_defined' value should be used to still have an event stored without a link to the user.
 
 All identifiers can be any form of string. 
 Paste this snippet into your website template page so that it appears before