update

README.md

@@ -8,10 +8,10 @@ Automated node.js installers for OS X and Ubuntu
 
 ```bash
 # install node.js without development dependencies
-curl -fsSL bit.ly/node-installer | bash -s --no-dev-deps
+curl -fsSL bit.ly/node-installer | bash -s -- --no-dev-deps
 
 # using wget instead of curl (Ubuntu)
-wget -nv bit.ly/node-installer -O - | bash -s --no-dev-deps
+wget -nv bit.ly/node-installer -O - | bash -s -- --no-dev-deps
 ```
 
 **node.js + dev tools**