chore: update README.md

Author: UmaxCode

README.md

@@ -71,7 +71,7 @@ The **Task Management System** is designed to streamline task allocation, monito
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 ## Architectural Diagram
-![Local Image](ARCHITECTURAL-DIAGRAM.png)
+[Link to architectural diagram](https://drive.google.com/file/d/1hnCXGY69D11RBGM_5vxP1taGss-_BIyE/view?usp=sharing)
 
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