docs(README.md): add installation and execution instructions for the project

Add installation instructions to the README.md file to guide users on how to set up the project:
- Clone the repository using `git clone git@hf.co:spaces/anpigon/talktosayno`
- Navigate to the project directory using `cd talktosayno`
- Install the project dependencies using `pip install -r requirements.txt`

Add execution instructions to the README.md file to guide users on how to run the project:
- Create a `docs` folder and place the PDF files to be processed inside it
- Run the command `python ingest.py` to process the documents

Also, fix a typo in the execution command:
- Change `python app.pyt` to `python app.py` for correct execution.

README.md

@@ -11,4 +11,23 @@ license: openrail
 duplicated_from: JUNGU/talktosayno
 ---
 
+## 설치하기
+```sh
+git clone git@hf.co:spaces/anpigon/talktosayno
+cd talktosayno
+pip install -r requirements.txt
+```
+
+## PDF 학습하기
+1. `docs` 폴더를 생성하고, 학습할 PDF 파일을 `docs` 폴더에 넣습니다.
+2. 그 다음 `python ingest.py` 명령을 실행하여 문서를 학습시킵니다.
+
+## 실행하기
+```py
+python app.pyt
+```
+<br>
+
+---
+
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference