Update data_etl_tools.html

Author: arunp77

data_etl_tools.html

@@ -148,7 +148,7 @@ <h3>🧊Full-stack Flask application</h3>
             <div class="image" style="text-align: center;">
               <img src="https://raw.githubusercontent.com/arunp77/arunp77.github.io/refs/heads/main/assets/img/Monitoring-dataflow_diagram.png" 
                    alt="Diagram" 
-                   width="500" height="400">
+                   width="750" height="600">
               <p style="font-size: 0.9em; color: #666; margin-top: 5px;">
                 Image credit: Arun
               </p>