Merge pull request enghwa#1 from yiangmeng/patch-1

Updated to include httpie installation

README.md

@@ -36,6 +36,8 @@ npx cdk@0.36.1 deploy  --require-approval never  "*"
 This is a spring boot CRUD app with RDS (mysql).
 
 ```
+# install httpie: https://httpie.org/doc/1.0.2
+# on Cloud9: sudo pip install --upgrade httpie
 # use httpie to POST to ALB endpoint / api/notes , eg:
 
 http POST sprin-sprin-????????????.ap-southeast-1.elb.amazonaws.com/api/notes title="title 2" content="sample content"
@@ -83,4 +85,4 @@ Trigger custom metric autoscaling:
 while true; do aws cloudwatch put-metric-data --metric-name CDKTestingCustomMetric --namespace "CDK/Testing" --value $(( ( RANDOM % 10 ) + 180 )); sleep 60; done
 
 ```
-Spring boot tasks should autoscale from 2 to 3,4,5...progressively. Watch the task count using Cloudwatch Dashboard. A max of 20 tasks will be launched as long as the custom metric stays above 150.
+Spring boot tasks should autoscale from 2 to 3,4,5...progressively. Watch the task count using Cloudwatch Dashboard. A max of 20 tasks will be launched as long as the custom metric stays above 150.