chore: update roadmap content json (#7881)

Co-authored-by: kamranahmedse <[email protected]>

public/roadmap-content/api-design.json

@@ -1540,9 +1540,35 @@
       }
     ]
   },
-  "grpc-apis@1DrqtOwxCuFtWQXQ6ZALp.md": {
+  "1DrqtOwxCuFtWQXQ6ZALp": {
     "title": "gRPC APIs",
-    "description": "",
-    "links": []
+    "description": "gRPC is a platform agnostic serialization protocol that is used to communicate between services. Designed by Google in 2015, it is a modern alternative to REST APIs. It is a binary protocol that uses HTTP/2 as a transport layer. It is a high performance, open source, general-purpose RPC framework that puts mobile and HTTP/2 first. It's main use case is for communication between two different languages within the same application. You can use Python to communicate with Go, or Java to communicate with C#.\n\nVisit the following resources to learn more:",
+    "links": [
+      {
+        "title": "gRPC Website",
+        "url": "https://grpc.io/",
+        "type": "article"
+      },
+      {
+        "title": "gRPC Introduction",
+        "url": "https://grpc.io/docs/what-is-grpc/introduction/",
+        "type": "article"
+      },
+      {
+        "title": "gRPC Core Concepts",
+        "url": "https://grpc.io/docs/what-is-grpc/core-concepts/",
+        "type": "article"
+      },
+      {
+        "title": "Explore top posts about gRPC",
+        "url": "https://app.daily.dev/tags/grpc?ref=roadmapsh",
+        "type": "article"
+      },
+      {
+        "title": "Stephane Maarek - gRPC Introduction",
+        "url": "https://youtu.be/XRXTsQwyZSU",
+        "type": "video"
+      }
+    ]
   }
 }