chore: add usage snippets to the readme

cmoog · cmoog · commit 5e2a6e1b1c06 · 2020-12-24T22:42:29.000-06:00
diff --git a/README.md b/README.md
@@ -1,3 +1,15 @@
 # Homebrew Coder Tap
 
 A Homebrew Tap for Coder related utilities and applications.
+
+## Usage
+
+```text
+brew tap cdr/coder
+```
+
+### Install the [Coder CLI](https://github.com/cdr/coder-cli)
+
+```text
+brew install coder
+```
