Update README.md

Author: qoomon

README.md

@@ -32,12 +32,14 @@ Open an SSH connection to your ec2 instances via AWS SSM without the need to ope
   ```
 
 #### Open SSH Connection
-* Ensure AWS CLI environemnt variables are set properly e.g. `export AWS_PROFILE=default` or `AWS_PROFILE=default ssh ... <INSTACEC_USER>@<INSTANCE_ID>`
-* If default region does not match instance region you need to provide it like this `<INSTACEC_USER>@<INSTANCE_ID>--<INSTANCE_REGION>`
+* Ensure AWS CLI environemnt variables are set properly e.g. 
+  * `export AWS_PROFILE=default` or `AWS_PROFILE=default ssh ... <INSTACEC_USER>@<INSTANCE_ID>`
+* If default region does not match instance region you need to provide it e.g.
+  * `<INSTACEC_USER>@<INSTANCE_ID>--<INSTANCE_REGION>`
 ###### SSH Command with SSH Config Setup
 `ssh <INSTACEC_USER>@<INSTANCE_ID>`
 ###### SSH Command with ProxyCommand CLI Option
-`ssh -o ProxyCommand="aws-ssm-ec2-proxy-command.sh %h %r %p ~/.ssh/id_rsa.pub" <INSTACEC_USER>@<INSTANCE_ID>`
+`ssh -i "~/.ssh/id_rsa" -o ProxyCommand="~/.ssh/aws-ssm-ec2-proxy-command.sh %h %r %p ~/.ssh/id_rsa.pub" <INSTACEC_USER>@<INSTANCE_ID>`
 
 ## Alternative Implementation with `ec2-instance-connect`
 * Ensure [Prerequisits](#prerequisits)