Update README.md

Author: limmike

README.md

@@ -36,7 +36,7 @@ The template provides the following features:
   - [Webmin](https://webmin.com/) web-based system administration (optional)
 - AWS Services
   - [AWS Backup](https://aws.amazon.com/backup/) to protect EC2 instance data (optional)
-  - [Application Load Balancer](https://aws.amazon.com/elasticloadbalancing/application-load-balancer/) with SSL/TLS certificate from [AWS Certificate Manager](https://aws.amazon.com/certificate-manager/) optional
+  - [Application Load Balancer](https://aws.amazon.com/elasticloadbalancing/application-load-balancer/) with SSL/TLS certificate from [AWS Certificate Manager](https://aws.amazon.com/certificate-manager/) (optional)
   - [Amazon CloudFront](https://aws.amazon.com/cloudfront/) CDN with support for [VPC Origin](https://aws.amazon.com/blogs/networking-and-content-delivery/introducing-cloudfront-virtual-private-cloud-vpc-origins-shield-your-web-applications-from-public-internet/) (optional)
 
 ## Notice