Update README.md

Fix, crashing when heatmap generation

Merge branch 'develop' of https://github.com/RausellLab/Tiresias into develop

Minor changes

Add frac argument fot test file if not indicated

Added Argument for test file generation

Added feature possibility of not input test file.

Fix independent model runs for failed runs

Validation independent model run

Predict independent model run

Test Independent model run

Update README.md

Changes in parameters

Minor Fixes

Minor Fixes