chore: update getting started doc to include brew install

docs/getting-started/README.md

@@ -2,57 +2,72 @@
 
 ## Installation
 
-Currently you can install Lula a couple different ways. A brew formulae is in the plan, but not currently implemented. Lula is currently only compatible with Linux/MacOS distributions.
+Currently, you can install Lula in a couple of different ways: using Homebrew or from source. Lula is compatible only with Linux and macOS distributions.
+
+### Homebrew
+
+1) [Homebrew](https://brew.sh/) is a package manager for macOS and Linux. You can install Lula with Homebrew by running the following:
+
+    ```shell
+    brew tap defenseunicorns/tap && brew install lula
+    ```
 
 ### From Source
 
 1) Clone the repository to your local machine and change into the `lula` directory
+
     ```shell
     git clone https://github.com/defenseunicorns/lula.git && cd lula
     ```
 
 2) While in the `lula` directory, compile the tool into an executable binary. This outputs the `lula` binary to the `bin` directory.
+
     ```shell
     make build
     ```
 
 3) On most Linux distributions, install the binary onto your $PATH by moving the downloaded binary to the /usr/local/bin directory:
+
     ```shell
     sudo mv ./bin/lula /usr/local/bin/lula
     ```
 
 ### Download
 
-1) Navigate to the Latest Release Page:
-Open your web browser and go to the following URL to access the latest release of Lula:
-https://github.com/defenseunicorns/lula/releases/latest
+1. Navigate to the Latest Release Page:
+   Open your web browser and go to the following URL to access the latest release of Lula:
 
-2) Download the Binary:
-On the latest release page, find and download the appropriate binary for your operating system. E.g., `lula_<version>_Linux_amd64`
+   [https://github.com/defenseunicorns/lula/releases/latest](https://github.com/defenseunicorns/lula/releases/latest)
 
-3) Download the checksums.txt:
-In the list of assets on the release page, locate and download the checksums.txt file. This file contains the checksums for all the binaries in the release.
+2. Download the Binary:
+   On the latest release page, find and download the appropriate binary for your operating system. E.g., `lula_<version>_Linux_amd64`
 
-4) Verify the Download:
-After downloading the binary and checksums.txt, you should verify the integrity of the binary using the checksum provided:
+3. Download the checksums.txt:
+   In the list of assets on the release page, locate and download the checksums.txt file. This file contains the checksums for all the binaries in the release.
+
+4. Verify the Download:
+   After downloading the binary and checksums.txt, you should verify the integrity of the binary using the checksum provided:
     * Open a terminal and navigate to the directory where you downloaded the binary and checksums.txt.
     * Run the following command to verify the checksum if using Linux:
-        ```shell
-        sha256sum -c checksums.txt --ignore-missing
-        ```
+
+      ```shell
+      sha256sum -c checksums.txt --ignore-missing
+      ```
+
     * Run the following command to verify the checksum if using MacOS:
-        ```shell
-        shasum -a 256 -c checksums.txt --ignore-missing
-        ```
 
-5) On most Linux distributions, install the binary onto your $PATH by moving the downloaded binary to the /usr/local/bin directory:
-    ```shell
-    sudo mv ./download/path/lula_<version>_Linux_amd64 /usr/local/bin/lula
-    ```
+      ```shell
+      shasum -a 256 -c checksums.txt --ignore-missing
+      ```
+
+5. On most Linux distributions, install the binary onto your $PATH by moving the downloaded binary to the /usr/local/bin directory:
+
+   ```shell
+   sudo mv ./download/path/lula_<version>_Linux_amd64 /usr/local/bin/lula
 
 ## Quick Start
 
-See the following tutorials for some introductory lessons on how to use Lula. If you are unfamiliar with Lula, the best place to start is the "Simple Demo". 
+See the following tutorials for some introductory lessons on how to use Lula. If you are unfamiliar with Lula, the best place to start is the "Simple Demo".
 
 ### Tutorials
 
@@ -67,4 +82,4 @@ Developing Lula Validations can sometimes be more art than science, but generall
 
 ### Configuration
 
-Lula supports the addition of a configuration file for specifying CLI flags and templating values. See our [configuration](./configuration.md) guide for more information.
+Lula supports the addition of a configuration file for specifying CLI flags and templating values. See our [configuration](./configuration.md) guide for more information.