Updated README

README.md

@@ -7,21 +7,24 @@ Prisma
 ![gif](http://i.imgur.com/eBM8Uwm.gif)
 
 **Prisma** is live visual software that was developed for presenting visuals
-in a live performance by [Merzbow] & XXX Residents at DMM VR Theater. It uses
+in a live performance by [Merzbow] & XXX Residents at [DMM VR Theater]. It uses
 the big transparent projection screen installed in front of the stage of the
-theater to make [Pepper's ghost] illusion.
+theater to make [Pepper's ghost illusion]. See the [photo and video collection]
+for how it looks.
 
-The basic design of the project is much similar to my previous Pepper's ghost
-project [Mirage], but it has been heavily optimized in several ways.
+Although the basic design of the project is much similar to my previous
+Pepper's ghost project [Mirage], it has been improved in several ways.
 
 One of the biggest changes that made a large performance gain is introducing
 *Shadow Slicer*. This made it possible to render shadows on the background
 screen without regenerating shadow maps multiple times (it was the most
 significant performance bottleneck in the previous project). For further
 details of Shadow Slicer, see the [source code of Shadow Slicer].
 
+[DMM VR Theater]: https://vr-theater.dmm.com/en/about
 [Merzbow]: https://en.wikipedia.org/wiki/Merzbow
-[Pepper's ghost]: https://en.wikipedia.org/wiki/Pepper%27s_ghost
+[Pepper's ghost illusion]: https://en.wikipedia.org/wiki/Pepper%27s_ghost
+[photo and video collection]: http://radiumsoftware.tumblr.com/tagged/vrdgh4
 [Mirage]: https://github.com/keijiro/Mirage
 [source code of Shadow Slicer]: Assets/Prisma/Scripts/ShadowSlicer.cs