Update README.md

README.md

@@ -13,11 +13,13 @@ We use the Gurobi solver as back-end to solve the optimization problem, though o
 For the user-interactive example to work without modifications, Gurobi needs to be installed and configured for Matlab. 
 See http://www.gurobi.com.
 
+The user-interactive example also uses a customized ginput.m file by Jiro Doke (http://www.mathworks.com/matlabcentral/fileexchange/38703-custom-ginput/content/ginputc.m) and is included here.
+
 # Example
 
 Once everything is installed, you can run the file 'find_OptimalTraj_mpc_m3pi.m' and choose either to run the in-built 
 example or provide a reach-avoid MTL specification of your choice.
 
 # Contact Us
 
-You can contact sahas3@rpi.edu for any queries or to report any bugs in the code.
+You can contact sahas3@rpi.edu for any queries or to report any bugs in the code.