chore: update roadmap content json (#8027)

Co-authored-by: kamranahmedse <4921183+kamranahmedse@users.noreply.github.com>

public/roadmap-content/system-design.json

@@ -1140,8 +1140,14 @@
   },
   "Ihnmxo_bVgZABDwg1QGGk": {
     "title": "Synchronous I/O",
-    "description": "Blocking the calling thread while I/O completes can reduce performance and affect vertical scalability.\n\nA synchronous I/O operation blocks the calling thread while the I/O completes. The calling thread enters a wait state and is unable to perform useful work during this interval, wasting processing resources.\n\nCommon examples of I/O include:\n\n*   Retrieving or persisting data to a database or any type of persistent storage.\n*   Sending a request to a web service.\n*   Posting a message or retrieving a message from a queue.\n*   Writing to or reading from a local file.\n\nThis antipattern typically occurs because:",
+    "description": "Blocking the calling thread while I/O completes can reduce performance and affect vertical scalability.\n\nA synchronous I/O operation blocks the calling thread while the I/O completes. The calling thread enters a wait state and is unable to perform useful work during this interval, wasting processing resources.\n\nCommon examples of I/O include:\n\n*   Retrieving or persisting data to a database or any type of persistent storage.\n*   Sending a request to a web service.\n*   Posting a message or retrieving a message from a queue.\n*   Writing to or reading from a local file.\n\nThis antipattern typically occurs because:\n\n*   It appears to be the most intuitive way to perform an operation.\n*   The application requires a response from a request.\n*   The application uses a library that only provides synchronous methods for I/O.\n*   An external library performs synchronous I/O operations internally. A single synchronous I/O call can block an entire call chain.\n\nVisit the following links to learn more:",
-    "links": []
+    "links": [
+      {
+        "title": "What is Synchronous I/O antipattern?",
+        "url": "https://learn.microsoft.com/en-us/azure/architecture/antipatterns/synchronous-io/",
+        "type": "article"
+      }
+    ]
   },
   "hDFYlGFYwcwWXLmrxodFX": {
     "title": "Monitoring",