Update doc/changelog.rst

Co-authored-by: Noah Stapp <noah@noahstapp.com>

Author: ShaneHarvey

doc/changelog.rst

@@ -9,7 +9,7 @@ PyMongo 4.12 brings a number of changes including:
 - Support for configuring DEK cache lifetime via the ``key_expiration_ms`` argument to
   :class:`~pymongo.encryption_options.AutoEncryptionOpts`.
 - Support for $lookup in CSFLE and QE supported on MongoDB 8.1+.
-- AsyncMongoClient no longer performs dns resolution for "mongodb+srv://" connection string in the constructor.
+- AsyncMongoClient no longer performs DNS resolution for "mongodb+srv://" connection strings on creation.
   To avoid blocking the asyncio loop, the resolution is now deferred until the client is first connected.
 
 Issues Resolved