Update README

Author: brikis98

README.md

@@ -3,9 +3,14 @@
 This repo contains the code samples for the book *[Terraform: Up and Running](http://www.terraformupandrunning.com)* by 
 [Yevgeniy Brikman](http://www.ybrikman.com).
 
-## Status
+## Quick start
 
-Code coming shortly!
+All the code is in the [code](/code) folder. It is organized by language (terraform, bash, ruby, etc) and within each
+language, by chapter. Since this code comes from a book about Terraform, the vast majority of the code consists of
+Terraform examples in the [code/terraform folder](/code/terraform). 
+
+For instructions on running the code, please consult the README in each folder, and, of course, the 
+*[Terraform: Up and Running](http://www.terraformupandrunning.com)* book. 
 
 ## License