docs: update readme, license

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 tjdakf.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1 +1,36 @@
-# github-practice
+# Github-practice
+해당 프로젝트는 Github를 개발자스럽게 사용하기 위한 실습을 포함하고 있습니다.
+
+## Prerequisites
+- Python 3.11 (x86)
+- pip
+
+## Installation
+```shell
+& pip install -r requirments.txt
+```
+## How to use
+```python
+from main import add
+
+a = 10
+b = 5
+
+answer = add(10, 5)
+
+print(f"Answer is {answer}")
+```
+
+## How to test
+```shell
+$ python tests
+```
+
+## How to contribute
+1. 이 저장소를 포크합니다.
+2. 새로운 기능이나 버그 수정과 관련된 브랜치를 만듭니다: git checkout -b feat-{ISSUE TAG}/{BRANCH NAME}
+3. 변경 사항을 커밋하고 푸시합니다.
+4. Pull Request를 작성하고 메인테이너에게 리뷰를 요청합니다.
+
+## Licence
+이 프로젝트는 MIT 라이선스를 따릅니다. 자세한 내용은 LICENSE 항목을 참조하세요.