diff --git a/readme.md b/readme.md
index e88d506..69ed66d 100644
--- a/readme.md
+++ b/readme.md
@@ -4,6 +4,9 @@ DMX-512 controller library for node.js - also includes a Webinterface and HTTP A
 
 ## Install
 
+	# ftdi module requires ftd2xx headers provided by libftdxx1
+	# install info here: https://github.com/KABA-CCEAC/node-ftdi#prerequisites
+	# install script here: https://github.com/KABA-CCEAC/node-ftdi/blob/master/install.sh
 	npm install -g dmx
 
 ## Webinterface
@@ -26,7 +29,7 @@ A example configuration is in the repository by the name <code>dmx-web-example.c
 
 ### Run
 
-	dmx-web [-c <config file>]
+	dmx-web [-c <full-path to config file>]
 
 ### Animation HTTP API