slight revision to readme to make the linke to Isofit clear
# Hypertrace
-Objective: Starting from known surface reflectance and atmospheric conditions, simulate top-of-atmosphere radiance and then perform atmospheric correction to estimate surface reflectance from this simulated radiance.
+Hypertrace is a wrapper around Isofit that links forward and inverse modeling.
+Starting from known surface reflectance and atmospheric conditions, simulate top-of-atmosphere radiance and then perform atmospheric correction to estimate surface reflectance from this simulated radiance.
## Lightning introduction
