readme: Simplify build with packer directions

Fixes udacity#22

Author: 13rac1

README.md

@@ -1,9 +1,9 @@
 Instructions for Practice Project
 ========================================
 
-These instructions assume familiarity with Git and GitHub. If you are not comfortable with those tools, please complete Udacity's [How to Use Git and GitHub](https://www.udacity.com/course/how-to-use-git-and-github--ud775) course before proceeding. 
+These instructions assume familiarity with Git and GitHub. If you are not comfortable with those tools, please complete Udacity's [How to Use Git and GitHub](https://www.udacity.com/course/how-to-use-git-and-github--ud775) course before proceeding.
 
-After installing the required tools, you will need to ensure that your computer can find the executables to run them. For this, you might need to modify the PATH environment variable. A good overview is at [superuser.com](https://superuser.com/questions/284342/what-are-path-and-other-environment-variables-and-how-can-i-set-or-use-them). You may need to search the web for instructions on how to set the PATH variable for your specific operating system and version. 
+After installing the required tools, you will need to ensure that your computer can find the executables to run them. For this, you might need to modify the PATH environment variable. A good overview is at [superuser.com](https://superuser.com/questions/284342/what-are-path-and-other-environment-variables-and-how-can-i-set-or-use-them). You may need to search the web for instructions on how to set the PATH variable for your specific operating system and version.
 
 ## Setting up your local machine
 
@@ -15,8 +15,7 @@ After installing the required tools, you will need to ensure that your computer
 
 ## Part I: Building a box with Packer
 
-From the packer-templates directory on your local machine:
-
+* Run `cd packer-templates`
 * Run `packer build -only=virtualbox-iso application-server.json`. You may see various timeouts and errors, as shown below. If you do, retry the command until the ISO download succeeds:
 
 ```
@@ -40,12 +39,12 @@ Build 'virtualbox-iso' errored: ISO download failed.
 
 ## Part II: Cloning, developing, and running the web application
 
-* On your local machine go to the root directory of the cloned repository 
+* On your local machine go to the root directory of the cloned repository
 * Run `git clone https://github.com/chef/devops-kungfu.git devops-kungfu`
 * Open http://localhost:8080 from your local machine to see the app running.
 * In the VM, run `cd devops-kungfu`
 * To install app specific node packages, run `sudo npm install`. You may see several errors; they can be ignored for now.
-* Now you can run tests with the command `grunt -v`. The tests will run, then quit with an error. 
+* Now you can run tests with the command `grunt -v`. The tests will run, then quit with an error.
 
 ### Troubleshooting