Update debug_aids.rst

added images to the documentation

Author: MahshadJ

doc/src/vpr/debug_aids.rst

@@ -27,6 +27,10 @@ If you want to read a text file describing the entire routing resource graph, ca
 
 Placer and Router Debugger
 ==========================
+
+.. image:: https://github.com/verilog-to-routing/verilog-to-routing.github.io/blob/master/img/debuggerWindow.png
+    :align: center
+
 Adding a breakpoint
 ~~~~~~~~~~~~~~~~~~~
 
@@ -50,6 +54,9 @@ Upon reaching a breakpoint, the program will stop, notify the user which breakpo
 Available Variables
 ~~~~~~~~~~~~~~~~~~~
 
+.. image:: https://github.com/verilog-to-routing/verilog-to-routing.github.io/blob/master/img/advancedWindow.png
+    :align: center
+
 You can also find the variables’ list in the Advanced Settings Window, on the left.
 
 **Placer Variables**