Update README.md

Author: zimlu02

README.md

@@ -5,7 +5,7 @@
 Code4z is an all-in-one VS Code extension pack for mainframe users working with z/OS. Code4z provides language support for IBM COBOL 6.0 and High Level Assembler for z/OS. It includes Zowe Explorer, Explorer for Endevor and extensions for interactive debugging and graphical visualization of COBOL applications. Code4z is free to install and use.
 
 <p align="center">
-  <img src="https://raw.githubusercontent.com/BroadcomMFD/code4z/master/extensions2.png" alt="Code4z Extensions"/>
+  <img src="https://raw.githubusercontent.com/BroadcomMFD/code4z/master/extensions3.png" alt="Code4z Extensions"/>
 </p>
 
 ## How Does It Work?