updated installation instructions in readme

Author: bhowes-tt

README.md

@@ -5,16 +5,18 @@ A Grasshopper plugin to export three.json files that can be loaded by the [Spect
 
 First implemented by Benjamin Howes, Charlie Portelli and Jonatan Schumacher at the <a href="http://core.thorntontomasetti.com/aec-technology-symposium-2014/aec-technology-symposium-2014-hackathon/">AEC Technology Hackathon in NYC </a>in May 2014 as part of the vA3C project.  Currently being maintained by Thornton Tomasetti's [CORE studio](http://core.thorntontomasetti.com/).
 
-Installation
-------------
-Download <a href="https://github.com/va3c/GHvA3C/releases/">the latest release</a> of the GHvA3C.zip file and extract the folder titled 'GHvA3C_Plugin' into this directory on your computer: 
-```
-C:\Users\USERNAME\AppData\Roaming\Grasshopper\Libraries
-```
+Installation Instructions
+---------------
+- Download the latest build from [Food4Rhino](http://www.food4rhino.com/)
+- Right click the downloaded .zip file > properties > click unblock button, then Apply, then OK.
+- copy the Spectacles.GrasshopperExporter.gha and Newtonsoft.Json.dll files into this directory:
+  - C:\Users\<yourUserName>\AppData\Roaming\Grasshopper\Libraries
+- Restart Rhino and Grasshopper, then look for the Spectacles tab in Grasshopper's ribbon.
 
 Usage
 -----
-Take a look at the sample file contained in <a href="https://github.com/va3c/GHvA3C/releases/">the latest release</a> of the GHvA3C.zip file to get you started with the JSON export functionalilty for Grasshopper.
+Take a look at the sample files contained in the downloaded .zip file to get you started.  
+
 Links
 -----
 <a href="http://tt-acm.github.io/Spectacles.WebViewer/">Spectacles Viewer</a>