message: Clarify some prerequisites
diff: @@ -16,6 +16,7 @@ To deploy your new serverless application, follow the below steps.
  ### Prerequisites
  +0. [Ensure you have Node.js](https://nodejs.org/en/download/)
  1. [Install Pulumi](https://pulumi.io/install)
  2. [Configure AWS Credentials](https://pulumi.io/install/aws.html)
  @@ -23,13 +24,19 @@ To deploy your new serverless application, follow the below steps.
  After cloning this repo, from this working directory, run these commands:
  -1. Create a new stack, which is an isolated environment for this example:
  +0. Install Node.js dependencies, either using NPM or Yarn:
  +
  + ```bash
  + $ npm install
  + ```
  +
  +1. Create a new Pulumi stack, which is an isolated environment for this example:
  ```bash
  $ pulumi stack init
  ```
  - This will ask you to provide a name; `dev` is a fine name to begin with.
  + This will ask you to give your stack a name; `dev` is a fine name to begin with.
  2. Configure the AWS region for this program -- any valid AWS region will do:
  