Update README.md

Author: acontu

README.md

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 # TCode
-Application for simulation of solid state sensor response
+
+## What is it?
+TCode is a C++14 compliant application to simulate the response of solid state sensors implemented on top of [Hydra](https://github.com/MultithreadCorner/Hydra). TCode is still in its infancy, for the moment we focused on raw performance and will make more complete and user friendly in the near future.
+
+## How it works
+TCode uses external 3D maps of electric fields, carrier mobilities and weighting field and energy deposit to simulate the response in current of solid state sensors. The motion of the individual carriers produced in the initial deposit is determined using a 4th other Runge-Kutta using the electric field and the mobilities and assuming that the carriers always move at drift velocity. At each time interval the current induced in the electrod is calculated from the carriers velocity using the corresponding weighting field, according to the [Shockley](https://aip.scitation.org/doi/10.1063/1.1710367)-[Ramo](https://ieeexplore.ieee.org/document/1686997) theorem.
+
+## Dependencies
+TCode depends on [ROOT](https://github.com/root-project/root), [libconfig](https://hyperrealm.github.io/libconfig/) and [TCLAP](http://tclap.sourceforge.net/).
+
+## Manual
+IN PREPARATION
+
+## Authors
+TCode was created by [Andrea Contu](https://github.com/acontu) and [Angelo Loi](https://github.com/angeloloi19).
+
+## Acknowledgement
+TCode was developed within the Timespot collaboration, supported by the [Instituto Nazionale di Fisica Nucleare (INFN)](http://home.infn.it/en/).