README: quick update for move notification

README.md

@@ -1,49 +1,10 @@
-Ray Tracing: The Next Week
+*WE'VE MOVED*
 ====================================================================================================
 
-![Ray Tracing: The Next Week](assets/RTNextWeek.jpg)
+We have consolidated our books into a single repository: [`raytracing.github.io`][].
 
-Getting the Book
------------------
-The _Ray Tracing in One Weekend_ series of books are now available to the public for free in PDF
-form, along with the accompanying source code. Releases are available [directly from GitHub][], or
-from Eric Haines's [Real-Time Rendering][] site. Alternatively, you can purchase the Kindle version
-of this series from [Amazon.com][]. Half of the proceeds of these sales go to [Hack the Hood][], a
-really neat organization.
+Please update your watches, stars, forks and links.
 
-Overview
----------
-In [Ray Tracing In One Weekend][], you built a simple brute force path tracer. In this installment
-we’ll add textures, volumes (like fog), rectangles, instances, lights, and support for lots of
-objects using a BVH. When done, you’ll have a “real” ray tracer.
 
-A heuristic in ray tracing that many people—including me—believe, is that most optimizations
-complicate the code without delivering much speedup. What I will do in this mini-book is go with the
-simplest approach in each design decision I make. Check www.in1weekend.com for readings and
-references to a more sophisticated approach. However, I strongly encourage you to do no premature
-optimization; if it doesn’t show up high in the execution time profile, it doesn’t need optimization
-until all the features are supported!
 
-The two hardest parts of this book are the BVH and the Perlin textures. This is why the title
-suggests you take a week rather than a weekend for this endeavor. But you can save those for last if
-you want a weekend project. Order is not very important for the concepts presented in this book, and
-without BVH and Perlin texture you will still get a Cornell Box!
-
-## Corrections
-If you spot errors or have suggested corrections, please [submit issues via GitHub][].
-
-Acknowledgments
-----------------
-Thanks to Becker for his many helpful comments on the draft and to Matthew Heimlich for spotting a
-critical motion blur error. Thanks to Andrew Kensler, Thiago Ize, and Ingo Wald for advice on
-ray-AABB tests. Thanks to David Hart and Grue Debry for help with a bunch of the details. Thanks to
-Jean Buckley for editing.
-
-
-
-[Amazon.com]:                 https://amazon.com/dp/B01CO7PQ8C
-[directly from GitHub]:       https://github.com/raytracing/TheNextWeek/releases/
-[Hack the Hood]:              http://www.hackthehood.org
-[Ray Tracing In One Weekend]: https://github.com/raytracing/InOneWeekend/
-[Real-Time Rendering]:        http://www.realtimerendering.com/#books-small-table
-[submit issues via GitHub]:   https://github.com/raytracing/TheNextWeek/issues/
+[`raytracing.github.io`]: https://github.com/RayTracing/raytracing.github.io