Initial version of the branching strategy docs.
Initial version of the branching strategy docs.

andrewcorrigan/thrust-multi-permutation-iterator,thrust/thrust,thrust/thrust,jaredhoberock/thrust,jaredhoberock/thrust,jaredhoberock/thrust,thrust/thrust,jaredhoberock/thrust,jaredhoberock/thrust,andrewcorrigan/thrust-multi-permutation-iterator,thrust/thrust,thrust/thrust,andrewcorrigan/thrust-multi-permutation-iterator