Add AWS Glue components (cloudposse/terraform-aws-components#958)

Co-authored-by: cloudpossebot <cloudpossebot@users.noreply.github.com>

Author: aknysh

src/README.md

@@ -243,7 +243,7 @@ No resources.
 - [datadog-integration](https://docs.cloudposse.com/components/library/aws/datadog-integration/)
 
 ## References
-* [cloudposse/terraform-aws-components](https://github.com/cloudposse/terraform-aws-components/tree/master/modules/datadog-monitor) - Cloud Posse's upstream component
+* [cloudposse/terraform-aws-components](https://github.com/cloudposse/terraform-aws-components/tree/main/modules/datadog-monitor) - Cloud Posse's upstream component
 
 
 [<img src="https://cloudposse.com/logo-300x69.svg" height="32" align="right"/>](https://cpco.io/component)