Merge pull request #315 from chenrui333/add-homebrew-installation

add homebrew support

README.md

@@ -24,7 +24,7 @@ Detect compliance and security violations across Infrastructure as Code to mitig
 ## Installing
 Terrascan's binary for your architecture can be found on the [releases](/~https://github.com/accurics/terrascan/releases) page. Here's an example of how to install it:
 
-```
+```sh
 $ curl --location /~https://github.com/accurics/terrascan/releases/download/v1.0.0/terrascan_1.0.0_Darwin_x86_64.tar.gz --output terrascan.tar.gz
 $ tar -xvf terrascan.tar.gz
   x CHANGELOG.md
@@ -45,17 +45,25 @@ $ go get -u github.com/accurics/terrascan/cmd/terrascan
 $ terrascan
 ```
 
+### Install via `brew`
+
+[Homebrew](https://brew.sh/) users can install by:
+
+```sh
+$ brew install terrascan
+```
+
 ### Docker
 Terrascan is also available as a Docker image and can be used as follows
 
-```
+```sh
 $ docker run accurics/terrascan
 ```
 
 ### Building Terrascan
 Terrascan can be built locally. This is helpful if you want to be on the latest version or when developing Terrascan.
 
-``` Bash
+```sh
 $ git clone git@github.com:accurics/terrascan.git
 $ cd terrascan
 $ make build
@@ -66,14 +74,14 @@ $ ./bin/terrascan
 
 To scan your code for security issues you can run the following
 
-```
+```sh
 $ terrascan scan -t aws
 ```
 Terrascan will exit 3 if any issues are found.
 
 The following commands are available:
 
-```
+```sh
 $ terrascan
 Terrascan