Replace GridCal with VeraGrid in README (#1198)

Author: brynpickering

README.md

@@ -600,7 +600,7 @@ energy system designs and analysis of interactions between technologies.
 - [RTS-GMLC](https://github.com/GridMod/RTS-GMLC) - Reliability Test System of the Grid Modernization Lab Consortium.
 - [OpenDSS](https://sourceforge.net/projects/electricdss/) - An electric power Distribution System Simulator for supporting distributed resource integration and grid modernization efforts.
 - [PowerDynamics.jl](https://github.com/JuliaEnergy/PowerDynamics.jl) - Provides all the tools you need to create a dynamic power grid model and analyze it.
-- [GridCal](https://github.com/SanPen/GridCal) - Aims to be a complete platform for power systems research and simulation.
+- [VeraGrid](https://github.com/SanPen/VeraGrid) - Aims to be a complete platform for power systems research and simulation.
 - [Backbone](https://gitlab.vtt.fi/backbone/backbone) - A generic energy network optimization tool written in GAMS.
 - [mosaik](https://gitlab.com/mosaik/mosaik) - A flexible Smart Grid co-simulation framework.
 - [SmartGridToolbox](https://gitlab.com/SmartGridToolbox/SmartGridToolbox) - Designed to provide an extensible and flexible starting point for developing a wide variety of smart grid simulations and other applications.