docs: update examples/src/keyring/aws_kms/act_like_aws_kms_master_key_provider.py

Author: mattsb42-aws

examples/src/keyring/aws_kms/act_like_aws_kms_master_key_provider.py

@@ -15,7 +15,7 @@
 as we did in the AWS KMS keyring,
 makes it more clear what behavior to expect.
 However, as you migrate away from master key providers to keyrings,
-you might need to replicate the exact behavior of the AWS KMS master key provider.
+you might need to replicate the behavior of the AWS KMS master key provider.
 
 This example shows how to configure a keyring that behaves like an AWS KMS master key provider.