add ref to node quickstart (#296)

Author: terakilobyte

source/quick-start.txt

@@ -1,3 +1,5 @@
+.. _node-quickstart:
+
 ===========
 Quick Start
 ===========
@@ -34,7 +36,7 @@ Install Node and npm
 Ensure your system has Node.js version 12 or later and a compatible
 version of npm (Node Package Manager) installed. For information on how
 to check your version of Node and npm, as well as installation
-instructions, see `downloading and installing Node.js and npm 
+instructions, see `downloading and installing Node.js and npm
 <https://docs.npmjs.com/downloading-and-installing-node-js-and-npm>`_.
 
 Select the :guilabel:`Clone the Project` tab if you want to build your