DOCSP-41514: compat table note (#979)

Author: rustagir

source/about-compatibility.txt

@@ -17,6 +17,14 @@ We maintain the following tables for each driver:
 - :ref:`MongoDB compatibility <mongodb-compatibility-tables>`
 - :ref:`Language compatibility <language-compatibility-tables>`
 
+.. important:: Locating Compatibility Tables
+
+   Each :driver:`driver's documentation </>` contains compatibility
+   tables for that specific driver. After navigating to a driver
+   documentation site, select the :guilabel:`Compatibility` entry from
+   the left-hand navigation to view the MongoDB and language
+   compatibility details for that driver.
+
 Read the following sections for explanations of these tables.
 
 .. _mongodb-compatibility-tables: