fixes link in VNA README

Author: nlynchjo

Vector_Network_Analyzers/README.md

@@ -5,7 +5,7 @@ TTR500 Series
 ### TTR500 examples
 * **[Sweep Speed Calculator Example](./src/SweepSpeedCalcExample)** [![Python 3.6](https://img.shields.io/badge/python-3.6-&?labelColor=006281&colorB=3E434A&logo=python)](https://www.python.org/downloads/release/python-360/)  
 
-* **[TTR500 Driver](./TTR500_Driver)** [![NI](https://img.shields.io/badge/NI-LabView-A5CE39)](https://www.ni.com/en-us/shop/labview.html)  
+* **[TTR500 Driver](./src/TTR500_Driver)** [![NI](https://img.shields.io/badge/NI-LabView-A5CE39)](https://www.ni.com/en-us/shop/labview.html)  
 
 
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