README update

README.md

@@ -1,2 +1,15 @@
 # StageRackHTMLtoPDF
 
+## Installation
+
+- Install nodejs
+
+- npm install
+
+## Run
+
+node main.js Address File
+
+node main.js http://localhost:8000/ C:\Users\Florian\Documents\document.mdf
+
+