Add README section on running the site

README.md

@@ -6,12 +6,30 @@ Happy coding! I've written a [blog post explaining this repo in more depth](http
 
 Feel free to submit issues if you feel this can be improved!
 
-## Installation
+## Getting started
 
-This is a Gatsby starter repo:
+This is a Gatsby starter repo so install it using the Gatsby CLI by running
 
 `gatsby new your-gatsby-blog https://github.com/mukul-rathi/gatsby-starter-reason-blog/`
 
+Alternatively you can fork this repo and then clone it:
+
+`git clone https://github.com/your-github-username/gatsby-starter-reason-blog/`
+
+Then to set up the repo:
+
+```bash
+cd your-gatsby-blog
+yarn install  # install dependencies
+yarn develop # or gatsby develop
+```
+
+Your site is now running at `https://localhost:8000/`! Start making changes to the source code and see the site update live!
+
+To learn more about Gatsby head to the [Gatsby website](https://www.gatsbyjs.org/).
+
+The structure of this repository is based off the [Gatsby starter blog](https://github.com/gatsbyjs/gatsby-starter-blog) - check that README out if you want more information about the top level structure of a typical Gatsby project.
+
 ## Tips
 
 JS interop with Reason can be a little messy at times. [This article](https://reasonml.github.io/docs/en/converting-from-js) helps you convert from JS. If `localhost:8000` displays uncaught TypeError messages when running `gatsby develop` but your Reason code compiles, check your JS-Reason bindings (imports/exports). :)