add installation instructions to README

chetbox · chetbox · commit 595ed3295421 · 2017-07-20T15:26:38.000+01:00
diff --git a/README.md b/README.md
@@ -2,6 +2,12 @@
 
 Test your Firebase database triggers offline
 
+## Installation
+
+```
+npm install --save-dev firebase-mock-functions
+```
+
 ## Example usage
 
 ```javascript
