document how to modify the Cray compiler scripts for Darshan support
This will be fairly simple after #74 (closed) is complete, but we should add notes to the darshan-runtime documentation indicating how to add Darshan instrumentation to the Cray compiler scripts for statically linked executables.
The short story is that cc invokes linux-cc which ends with a link command. The additional arguments must be added to that link command.
There is probably a similar change to make for fortran and c++ compilation.