More readme edits. Getting dP_GG sorted.
More readme edits. Getting dP_GG sorted.

Jhaefner/PressureDrop,Jhaefner/Cross-Flow-Pressure-Drop-Studies,Jhaefner/TORCHE,Jhaefner/Cross-Flow-Pressure-Drop-Studies,Jhaefner/TORCHE,Jhaefner/PressureDrop