JT PR fixes 2

Author: rustagir

source/reference/class/MongoDBClientBulkWrite.txt

@@ -9,11 +9,11 @@ Definition
 
 .. phpclass:: MongoDB\ClientBulkWrite
 
-   This class enables you to assemble a bulk write command to pass to
-   :phpmethod:`MongoDB\Client::bulkWrite()` to perform write operations
-   across multiple namespaces.
+   This class enables you to assemble a bulk write command that you
+   pass to :phpmethod:`MongoDB\Client::bulkWrite()` to perform write
+   operations across multiple namespaces.
 
-   This class is a builder to instantiate a :php:`BulkWriteCommand
+   ``ClientBulkWrite`` is a builder class to create a :php:`BulkWriteCommand
    <mongodb-driver-bulkwritecommand>` instance that the library sends to the
    server.
 

source/reference/method/MongoDBClient-bulkWrite.txt

@@ -37,7 +37,9 @@ Parameters
 
      We recommend using the ``ClientBulkWrite`` builder class and
      methods to specify write operations in a bulk write command instead
-     of using the ``BulkWriteCommand`` class.
+     of using the ``BulkWriteCommand`` class. ``ClientBulkWrite``
+     provides a fluent API with methods similar to CRUD methods from the
+     :phpclass:`MongoDB\Collection` class.
 
   Represents the assembled bulk write command or builder.
   :phpmethod:`MongoDB\Client::bulkWrite()` supports

source/reference/method/MongoDBClientBulkWrite-withCollection.txt

@@ -26,10 +26,10 @@ Definition
           Collection $collection,
       ): self
 
-
    You cannot mix ``Collection`` instances associated with different
-   ``Manager`` objects because the library sends the client bulk
-   write operation as a command to a single server.
+   ``Manager`` objects when calling this method on a ``ClientBulkWrite``
+   instance. This is because the library sends the completed
+   ``BulkWriteCommand`` to a single server.
 
 Parameters
 ----------