Revisions

Added information on AWS CodeCommit as default source code repository.

Updated architecture diagrams and solution component diagrams with AWS CodeCommit.

Updated costs table with change in solution costs to include AWS CodeCommit.

Mitigated impact caused by new default settings for S3 Object Ownership (ACLs disabled) for all new S3 buckets.

For more information, refer to the CHANGELOG.md file in the GitHub repository.

Added information about user group authorizations under the Security section.

Added instructions on how to update the solution.

For more information, refer to the CHANGELOG.md file in the GitHub repository.