Update README.md

README.md

@@ -6,16 +6,14 @@ Original Document on the subject (by Timothy Brooks): http://timothybrooks.com/t
 ### Compilation instructions:
 1. Install libraw, libpng, and libjpeg.¹
 2. Download and compile llvm 3.9
-3. Download the "2017-06-03" source of Halide from https://github.com/halide/Halide_old_history/releases
-4. Compile Halide according to the README.md file included with the source file zip of halide.
-5. Go the folder you have the hdr-plus code in.
-6. Set `HALIDE_ROOT_DIR` in CMakeLists.txt to the Halide directory path.
-7. From the project root directory, run the following commands:
+3. Install or compile the latest version Halide
+4. Go the folder you have the hdr-plus code in.
+5. From the project root directory, run the following commands:
 ```
 mkdir build
 cd build
-cmake ..
-make
+cmake -DHALIDE_DISTRIB_DIR=$(Insert halide directory) ..
+make -j$(expr $(nproc) \+ 1)
 ```
 
 ### HDR+ algorithm examples: