Fix Medium article link in README

Updated Medium link to reflect the correct username.

Author: vishalgunjalSWE

README.md

@@ -230,10 +230,7 @@ I write in-depth technical articles explaining the "why" behind infrastructure d
 
 I document my journey from fundamental concepts to advanced SRE implementations on Medium.
 
-➡️ [Read more articles on Medium](https://medium.com/@vishalgunjal0287)
-
-<!-- BLOG-POST-LIST:START -->
-<!-- BLOG-POST-LIST:END -->
+➡️ [Read more articles on Medium](https://medium.com/@vishalgunjal)
 
 
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