Add png file links to README

Author: stephen-rowan

README.md

@@ -17,6 +17,8 @@ This workspace contains Python scripts for visualizing meeting data as directed
   4. Adds nodes and edges for all relevant entities.
   5. Saves the resulting graph visualization as `graph.png`.
 
+![graph.png](graph.png)
+
 ### Nodes-Edges2.py
 
 - **Purpose:**  
@@ -28,6 +30,8 @@ This workspace contains Python scripts for visualizing meeting data as directed
   4. Adds nodes and edges for all entities across all meetings.
   5. Saves the resulting graph visualization as `graph2.png`.
 
+![graph2.png](graph2.png)
+
 ---
 
 **Note:**