#14 Updated the readme with measurement examples
#14 Updated the readme with measurement examples

Added examples for all combinations of the date arguments, and some clarifications.
coddingtonbear/python-myfitnesspal,tomn46037/python-myfitnesspal,rbelzile/python-myfitnesspal,rbelzile/python-myfitnesspal,tomn46037/python-myfitnesspal