diff --git a/readme.txt b/readme.txt
index a6d54d336..ac787d177 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,4 +1,3 @@
-
 Bullet 3.x GPU rigid body pipeline using OpenCL.
 
 The entire collision detection and rigid body dynamics is executed on the GPU.
@@ -51,9 +50,26 @@ There are some command-line options, you can see using the --help option. For ex
 
 ./App_Bullet3_OpenCL_Demos_clew_gmake --benchmark
 
-You can use the mouse to grab objects. When holding the ALT of CONTROL key, you have Maya style camera mouse controls.
-Press F1 to create a screenshot.
-Hit ESCAPE to exit the demo app.
+./App_Bullet3_OpenCL_Demos_clew_gmake --cl_platform=1 --cl_device=1 --
+
+[--selected_demo=<int>]   Start with a selected demo: 
+[--benchmark]             Run benchmark and export results to file 
+[--maxFrameCount=<int>]   Run the benchmark for <int> frames
+[--dump_timings]          Print the profile timings to console
+[--disable_opencl]        Don't use OpenCL (ignore this option for now)
+[--cl_device=<int>]       Choose a certain OpenCL device, if the platform has more than 0 devices
+[--cl_platform=<int>]     Choose a certain OpenCL platform, if the machine has multiple platforms
+[--disable_cached_cl_kernels] Disable loading cached binary OpenCL kernels, useful for CodeXL debugging
+[--x_dim=<int>]               Change default demo settings (same for y, z and x_gap etc)
+[--pair_benchmark_file=<filename>] Load AABB's from disk for the PairBench
+[--load_cl_kernels_from_disk] Force loading OpenCL kernels from disk (this feature is currently broken)
+[--no_instanced_collision_shapes]  Disable collision shape instancing (for tests)
+
+
+You can use mouse picking to grab objects. When holding the ALT of CONTROL key, you have Maya style camera mouse controls.
+Press F1 to create a screenshot. Hit ESCAPE to exit the demo app.
+
+See docs folder for further information and see the SIGGRAPH 2013 course notes at
+http://www.multithreadingandvfx.org/course_notes
 
-See docs folder for further information.