Removed an implementation detail from a comment, and instead added a link to the description of the algorithm.
Removed an implementation detail from a comment, and instead added a link
to the description of the algorithm.

The specific algorithm being currently used is an implementation detail.
In the future, it might be required to switch to a different algorithm.

fscheck/FsCheck,fsharp/FsCheck,ploeh/FsCheck,fscheck/FsCheck,ErikSchierboom/FsCheck