Added note about installing node >= 0.8

(cherry picked from commit e0b2c02)

Author: mikeedwards

README.md

@@ -69,6 +69,8 @@ For example, if your WordPress files are in the directory ```wordpress```, and y
 
 1. Go to `http://local.jquery.com` and walk through the standard WordPress installation. `web-base-template` includes a special install script that will initialize the entire network.
 
+1. Be sure to have node >= 0.8 installed on your system.  Some sites, such as download.jqueryui.com, require that version or greater.
+
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