[Docs] Update Combine Description

Add Practice Code to Description

Author: kpk0616

README.md

@@ -6,4 +6,4 @@ Combine과 관련된 내용들을 정리한 레포지토리입니다. (2023.06.3
 | Publishers | 07/03, 2023 | [Here](https://www.notion.so/Combine-Publishers-514171e4f67743259de3e7a5e074ac4f?pvs=4) | - Combine의 주요 개념 <br> - Publisher의 개념, 내부 구조, 종류 <br> - `just`, `future`, `deferrd`, `empty`, `fail`, `record` |
 | Subscribers | 07/03, 2023 | [Here](https://www.notion.so/Combine-Subscribers-1f2beb23aa6b40b4b0b7cf797e3aee2f?pvs=4) | - Subscriber와 Subscription <br> - Subscriber의 종류: `sink`, `assign` <br> - Subscriber 사용에 필요한 것: Demand <br> - Completion과 AnySubscriber <br> - Subscriber의 Life Cycle |
 | Subject | 07/03, 2023 | [Here](https://www.notion.so/Combine-Subject-1114b54067644f5195b8bf386cb9f90b?pvs=4) | - `CurrentValueSubject` <br> - `PassthroughSubject` |
-| Combine-Operators | 07/03, 2023 | [Here](https://www.notion.so/Combine-Operators-74574df79df144b3a66a35e1f50ce3bc?pvs=4) | - 주요 Operators |
+| Combine-Operators | 07/03, 2023 | [Here](https://www.notion.so/Combine-Operators-74574df79df144b3a66a35e1f50ce3bc?pvs=4) | - [Practice Code](https://github.com/DKS-wift/Combine/tree/main/GitSearch_Combine) <br> - github starred repository 검색 구현 <br> - 주요 Operators |