added how to install to readme

Leon Strauss · Leon Strauss · commit 5cba97af00c5 · 2016-10-11T15:12:21.000+02:00
diff --git a/README.md b/README.md
@@ -2,6 +2,14 @@
 
 Simple plug & play HTTP basic auth middleware for Express.
 
+## How to install
+
+Just run
+
+    npm install express-basic-auth
+
+add the `--save` option to add it to the `dependencies` in your `package.json` as well
+
 ## How to use
 
 The module will export a function, that you can call with an options object to
