Create README.md

Readme file for the exit suite code.
Create Van Tharp Expectancy.txt

Added Van Tharp expectancy formula for optimisation.
Create README.md

Added readme file for Van Tharp expectancy optimise formula.
Create Ratio of net to gross profit ratio.txt

Added formula for net to gross profit ratio.
Create README.md

Added readme file for NP/GP ratio.
Merge branch 'master' of https://github.com/mrticks/openAlgo

Conflicts:
	MultiCharts/Signals & Strategies/GD-exit-suite/README.md

Signed-off-by: Mark Tompkins <mtompkins@firmusgrp.com>