typos

Author: terakilobyte

source/whats-new.txt

@@ -32,8 +32,8 @@ New features of the 4.4 Node.js driver release include:
 - In the 4.0.0 release of the driver, the deprecated ``collection.count()`` method was inadvertently changed to behave like ``collection.countDocuments()``.
   In this release, the ``collection.count()`` method is updated to match legacy behavior:
 
-  - If a query is provided, ``collection.count()`` behaves the same as ``collection.countDocuments()`` and perform a collection scan.
-  - If no query is not provided, ``collection.count()`` behaves the same as ``collection.estimatedDocumentCount()`` and relies on
+  - If a query is provided, ``collection.count()`` behaves the same as ``collection.countDocuments()`` and performs a collection scan.
+  - If no query is  provided, ``collection.count()`` behaves the same as ``collection.estimatedDocumentCount()`` and relies on
     collection metadata.
 
   .. important:: Deprecation Notice