Merge pull request #10 from hahwul/dev

Dev

Author: hahwul

README.md

@@ -6,8 +6,17 @@ Dead link (broken link) means a link within a web page that cannot be connected.
 
 ## Installation
 ### Install with Gem
-```
+```bash
 gem install deadfinder
+
+# https://rubygems.org/gems/deadfinder
+```
+
+### Install with Homebrew
+```bash
+brew install deadfinder
+
+# https://formulae.brew.sh/formula/deadfinder
 ```
 
 ### Docker Image