updated file exchange link

Author: callieEDU

README.md

@@ -1,5 +1,5 @@
 # Virtual Controls Laboratory 
-[![View Virtual Controls Laboratory on File Exchange](https://www.mathworks.com/matlabcentral/images/matlab-file-exchange.svg)](https://www.mathworks.com/matlabcentral/fileexchange/) or [![Open in MATLAB Online](https://www.mathworks.com/images/responsive/global/open-in-matlab-online.svg)](https://matlab.mathworks.com/open/github/v1?repo=MathWorks-Teaching-Resources/Virtual-Controls-Laboratory&project=VirtualControlsLaboratory.prj)  
+[![View Virtual Controls Laboratory on File Exchange](https://www.mathworks.com/matlabcentral/images/matlab-file-exchange.svg)](https://www.mathworks.com/matlabcentral/fileexchange/100064-virtual-hardware-and-labs-for-controls?s_tid=ta_fx_results) or [![Open in MATLAB Online](https://www.mathworks.com/images/responsive/global/open-in-matlab-online.svg)](https://matlab.mathworks.com/open/github/v1?repo=MathWorks-Teaching-Resources/Virtual-Controls-Laboratory&project=VirtualControlsLaboratory.prj)  
 
 **Curriculum Module**  
 _Created with R2021a. Compatible with R2021a and later releases._