Update README.md

Update README.md

Added input options for DSM and some notes to readme

Think DSM is working, initial HIT tests look good. Fixed error with it using non-averaged Prt values and have flag to dump Dynaimc coefficient ranges

working on testing/making DSM faster so testing doesn't take a ridiculous amount of time, for some reason solver crashes if any LES != DSM, need to find bug

Added global averaging for SGS components and working towards getting a HIT case together to test the DSM

Found error in DSM CI calc

DSM w/ stuff compiles, no comment on if it really works yet

Made some corrections after looking at DSM math, need to go over implementation one more time and clean up memory allocation. working on solver implementation, not tried to compile just yet

Still working on dynamic Smagorinsky model implementation

Have first step of DSM written in code and updating pressure and temperature, haven't tried to compile yet

Working on calculating components of Dynamic Smagorinsky

Working on adding compressible dynamic Smagorinsky SGS model

Update README.md

Looks like we have working commutative test filters