docs: update README

README.md

@@ -10,7 +10,7 @@ The [app.rs.school](https://app.rs.school) is an application for the [RS School]
 
 ## Monitoring
 
-https://status.app.rs.school/
+https://status.rs.school/
 
 ## Technology Overview
 
@@ -26,6 +26,7 @@ https://status.app.rs.school/
 ### Infrastructure
 
 - Cloud: [AWS EC2](https://aws.amazon.com/ec2/), [AWS RDS](https://aws.amazon.com/rds/postgresql/), [AWS S3](https://aws.amazon.com/s3/), [AWS CloudWatch](https://aws.amazon.com/cloudwatch/)
+- Monitoring: [Sentry](https://rs-school.sentry.io/), [Checkly](https://app.checklyhq.com/)
 - CI/CD: [Github Actions](https://github.com/rolling-scopes/rsschool-app/tree/master/.github/workflows)
 
 ## Getting Started