feat: readme updates

README.md

@@ -431,3 +431,22 @@ This is the backend API repository for TurLink. TurLink is a link shortener app
       ]
     }
     ```
+    ### Get Summary for a Link
+    - **GET** `/api/v1/summary?link={original link}`
+      - Description: Retrieves a summary of the content at the given link.
+      - Example Request: GET `https://turlink-be-53ba7254a7c1.herokuapp.com/api/v1/summary?link=www.example.com`
+      - Successful Response (200 OK):
+        ```json
+        {
+          "data": {
+            "attributes": {
+              "link": "www.example.com",
+              "summary": "1. example 1\n2. example 2\n3. example 3"
+            }
+          }
+        }
+        ```
+      - Notes:
+        - This endpoint currently returns mock data.
+        - In the future, it will provide an actual summary of the content at the given link.
+        - The summary is expected to be a string with numbered points, separated by newline characters.