[AB2D] Update README.md with setup instructions (#61)

update the readme with setup instructions

## 🎫 Ticket

Unticketed

## 🛠 Changes

Updates the readme.md with setup instructions and instructions for
running the website locally.

## ℹ️ Context

These changes were done to make improve the readme, making it more clear
how to setup and run the project locally.

## 🧪 Validation

N/A - This is just a readme update, there are no functional updates to
the project. I edited the readme directly on github and committed to a
new branch.

README.md

@@ -1,3 +1,5 @@
+# Requirements
+
 ## Install and Use Pre-commit
 
 Anyone committing to this repo must use the pre-commit hook to lower the likelihood that secrets will be exposed.
@@ -21,3 +23,45 @@ pre-commit install
 ```
 
 This will download and install the pre-commit hooks specified in `.pre-commit-config.yaml`.
+
+# Local Development Setup
+## Install Ruby 3.1.2
+This project is a Jekyll static website that is being built using Ruby 3.1.2. We recommend using a ruby version manager to manage installations, such as [chruby](https://github.com/postmodern/chruby) alongside a ruby installer such as [ruby-install](https://github.com/postmodern/ruby-install#readme)
+
+### Step 1: Installing Ruby with Ruby Install
+To install ruby using ruby install, use the following command:
+
+```sh
+ruby-install ruby 3.1.2
+```
+
+### Step 2: Switch Ruby versions with Chruby
+To switch to the newly installed ruby 3.1.2 using chruby, use the following command:
+
+```sh
+chruby 3.1.2
+```
+
+You can verify which ruby version is currently active using chruby with the following command:
+
+```sh
+chruby
+```
+
+This will list ruby versions that have been installed on your machine with ruby-install. The active version will have an `*` prepended to the name.
+
+### Step 3: Install gems
+After ruby 3.1.2 has been installed, you will likely need to install the required gems for the project. To do this, run the following command:
+
+```sh
+bundle install
+```
+
+# Running the project
+After `Local Development Setup` is complete, you can run the project by using the following command:
+
+```sh
+bundle exec jekyll serve
+```
+
+The website should then be running locally on your machine at the following address: [http://127.0.0.1:4000/](http://127.0.0.1:4000/)