Fix Terraform version number in code samples

Author: brikis98

code/terraform/00-preface/hello-world/README.md

@@ -10,7 +10,7 @@ For more info, please see the preface of *[Terraform: Up and Running](http://www
 * You must have [Terraform](https://www.terraform.io/) installed on your computer. 
 * You must have an [Amazon Web Services (AWS) account](http://aws.amazon.com/).
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/01-why-terraform/server-db-elb/README.md

@@ -13,7 +13,7 @@ For more info, please see Chapter 1, "Why Terraform", of
 * You must have [Terraform](https://www.terraform.io/) installed on your computer. 
 * You must have an [Amazon Web Services (AWS) account](http://aws.amazon.com/).
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/02-intro-to-terraform-syntax/one-server/README.md

@@ -11,7 +11,7 @@ For more info, please see Chapter 2, "An Introduction to Terraform Syntax", of
 * You must have [Terraform](https://www.terraform.io/) installed on your computer. 
 * You must have an [Amazon Web Services (AWS) account](http://aws.amazon.com/).
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/02-intro-to-terraform-syntax/one-webserver-with-vars/README.md

@@ -13,7 +13,7 @@ For more info, please see Chapter 2, "An Introduction to Terraform Syntax", of
 * You must have [Terraform](https://www.terraform.io/) installed on your computer. 
 * You must have an [Amazon Web Services (AWS) account](http://aws.amazon.com/).
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/02-intro-to-terraform-syntax/one-webserver/README.md

@@ -12,7 +12,7 @@ For more info, please see Chapter 2, "An Introduction to Terraform Syntax", of
 * You must have [Terraform](https://www.terraform.io/) installed on your computer. 
 * You must have an [Amazon Web Services (AWS) account](http://aws.amazon.com/).
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/02-intro-to-terraform-syntax/webserver-cluster/README.md

@@ -14,7 +14,7 @@ For more info, please see Chapter 2, "An Introduction to Terraform Syntax", of
 * You must have [Terraform](https://www.terraform.io/) installed on your computer. 
 * You must have an [Amazon Web Services (AWS) account](http://aws.amazon.com/).
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/03-terraform-state/file-layout-example/global/s3/README.md

@@ -14,7 +14,7 @@ For more info, please see Chapter 3, "How to Manage Terraform State", of
 * You may want to install [terragrunt](https://github.com/gruntwork-io/terragrunt) for locking and remote state 
   management.
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/03-terraform-state/file-layout-example/stage/data-stores/mysql/README.md

@@ -12,7 +12,7 @@ For more info, please see Chapter 3, "How to Manage Terraform State", of
 * You must have [terragrunt](https://github.com/gruntwork-io/terragrunt) installed on your computer.
 * You must have an [Amazon Web Services (AWS) account](http://aws.amazon.com/).
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/03-terraform-state/file-layout-example/stage/services/webserver-cluster/README.md

@@ -17,7 +17,7 @@ For more info, please see Chapter 3, "How to Manage Terraform State", of
 * You must deploy the MySQL database in [data-stores/mysql](../../data-stores/mysql) BEFORE deploying the
   templates in this folder.
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start
 

code/terraform/04-terraform-module/module-example/prod/data-stores/mysql/README.md

@@ -12,7 +12,7 @@ For more info, please see Chapter 4, "How to Create Reusable Infrastructure with
 * You must have [terragrunt](https://github.com/gruntwork-io/terragrunt) installed on your computer.
 * You must have an [Amazon Web Services (AWS) account](http://aws.amazon.com/).
 
-Please note that this code was written for Terraform {{ terraform_version }}.
+Please note that this code was written for Terraform 0.7.x.
 
 ## Quick start