update example

Author: stephmarie17

source/includes/write/transaction.kt

@@ -38,7 +38,7 @@ fun main() {
                 .writeConcern(WriteConcern.MAJORITY)
                 .build()
 
-            // Use the withTransaction method to start a transaction and execute the lambda function
+            // Uses the withTransaction method to start a transaction and run the given function
             session.withTransaction({
                 insertDocuments(session)
                 println("Transaction succeeded")

source/write/transactions.txt

@@ -104,7 +104,7 @@ Example
 -------
 
 The following example demonstrates how to create a session, create a
-transaction, and insert documents into multiple collections in one transaction
+transaction, and insert documents into a collection in one transaction
 through the following steps:
 
 1. Create a session from the client by using the ``startSession()`` method.