DOCSP-46039: Clarify verifier limitation about TTLs (#545) (#555)

* init commit

* small change

* feedback

(cherry picked from commit 518297d)

Author: mayaraman19

source/includes/fact-verifier-unsupported.rst

@@ -1,7 +1,8 @@
 The verifier doesn't check the following namespaces: 
 
 - Capped collections
-- Collections with TTL indexes
+- Collections with TTL indexes, including TTL indexes that are added or dropped
+  during migration
 - Collections that don't use the default collation
 - Views
 
@@ -12,5 +13,4 @@ The verifier doesn't check the following collection features:
 
 To verify the above data and metadata, script additional checks
 for these collections and collection features. For more
-information, see :ref:`c2c-verification`.
-
+information, see :ref:`c2c-verification`.