Update README.md

Readme.md

+Code intented do XXXXXXXXXXXXXXXXXXXXXXXXXXX
+
+1. Run "stl2vtk.py"
+This will show the surface you are dealing with, the entering file needs to be in stl format.
+As a result a ply will be obtained for further treatment.
+In this code, several methods to study and find surface parameters are commented out.
+
+2. Run "Plotting.py" 
+The "tata_filtered.ply" is the input that will provide the arrays to create a 2D plane
+inside a Matrix of the same size as the surface.
+An array of 3 columns and n number of points will be obtained.
+1 and 2nd colimns correspond to coordinaes x and y. 3rd column is the value inside them.
+This info is sqved in the "data" variable
+
+3. Run "Gaus_surface.py"
+Array values will be arranged inside the matrix to plot the 2D plane.
+This will provide a pickle file containing the surface heights fom 1 to 0.
+The file is called "Gts_Surface_T.cvs"
+
+4. "Show_code.py"
+This code show the final surface obtained in a colored plot.
+It also allows to obtain a small sample if needed to perfom fast test with cell seeding called
+"Gts_sample.cvs"
+