added readme for ec2for jenkins

Author: easyawslearn

EC2withJenkins/README.md

@@ -1,7 +1,7 @@
 # Terraform-Tutorial # Jenkins Install in EC2 Instance
 
 
-Terraform Tutorial is the set of examples of [Terraform](https://www.terraform.io/) modules that is building the EC2 Instance witj jenkins 
+Terraform Tutorial is the set of examples of [Terraform](https://www.terraform.io/) modules that is building the EC2 Instance witj jenkins
 infrastructure resources on AWS Cloud.
 
 To learn about module, follow the readme of each module.
@@ -10,3 +10,24 @@ To learn about module, follow the readme of each module.
 
 - **Terraform**: v0.11.14
 - **Terraform Docs**: https://www.terraform.io/docs/configuration-0-11/index.html
+
+## Usage
+
+```hcl
+module "ec2_instance" {
+  source     = "git::https://github.com/easyawslearn/Terraform-Tutorial.git/EC2withJenkins"
+
+  region        = "us-west-2"
+  key-name      = "ec2-demo"
+  instance_type = "t2.micro"
+
+}
+```
+
+## Inputs
+
+| Name | Description | Type | Default | Required |
+|------|-------------|:----:|:-----:|:-----:|
+| region | AWS region | string | us-east-1 | yes |
+| key-name | ec2 access key name | string | ec2-demo | yes |
+| instance_type | ec2 instance_type | string | t2.micro | yes |