Updated VPR Documentation

Updated VPR documentation due to a change in the "Toggle Nets" dropdown list to better describe the options. Added updated image as well.

Author: Meet-Patel2580

doc/src/.DS_Store

@@ -69,7 +69,7 @@ If the **Placement Macros** drop down is set, any placement macros (e.g. carry c
 
 Visualizing Netlist Connectivity
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-The **Toggle Nets** drop-down list under the **Net Settings** tab toggles the nets in the circuit to be visible/invisible. Options include **Nets** and **Logical Connections**.
+The **Toggle Nets** drop-down list under the **Net Settings** tab toggles the nets in the circuit to be visible/invisible. Options include **Cluster Nets** and **Primitive Nets**.
 
 .. figure:: ../Images/Net_Settings.png
     :align: center