Create readme.md

Author: javaHelper

07-distributed-tracing-with-sleuth-and-zipkin/readme.md

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+# Distributed Tracing with Sleuth and Zipkin
+
+- Start the zipkin
+
+```sh
+docker run -d -p 9411:9411 openzipkin/zipkin
+```
+----------
+
+- HTTP GET - `http://localhost:9090/student-service/api/student/getById/1`
+
+Response:
+
+```json
+{
+    "id": 1,
+    "firstName": "Raj",
+    "lastName": "Dave",
+    "email": "raj_dave@yahoo.com",
+    "addressResponse": {
+        "addressId": 1,
+        "street": "Delhi",
+        "city": "Happy Street"
+    }
+}
+```
+-------
+
+<img width="1418" alt="Screenshot 2022-12-26 at 3 15 21 PM" src="https://user-images.githubusercontent.com/54174687/209533850-9d292c88-bec3-4b7f-8b3b-a8fc7e7bec83.png">
+
+
+-----
+
+- You can also search by TraceId: 6bdc6fe79d0e92b7
+
+<img width="980" alt="Screenshot 2022-12-26 at 3 16 41 PM" src="https://user-images.githubusercontent.com/54174687/209533952-9967f580-b0f2-4606-96db-ddaa0dfb5192.png">
+
+<img width="1418" alt="Screenshot 2022-12-26 at 3 17 19 PM" src="https://user-images.githubusercontent.com/54174687/209534046-8c575d9a-2e4e-4fb7-abad-8af73b73d168.png">
+