Update repository name from mistral-ocr-python to mistral-ocr

Updated repository references in:
- README.md: Installation instructions
- CONTRIBUTING.md: Development environment setup and project structure
- setup.py: Repository URL

CONTRIBUTING.md

@@ -28,8 +28,8 @@ Please be respectful and considerate of others when contributing to this project
 
 1. **Fork and clone the repository**:
    ```bash
-   git clone https://github.com/yourusername/mistral-ocr-python.git
-   cd mistral-ocr-python
+   git clone https://github.com/yourusername/mistral-ocr.git
+   cd mistral-ocr
    ```
 
 2. **Create a virtual environment**:
@@ -51,7 +51,7 @@ Please be respectful and considerate of others when contributing to this project
 ### Project Structure
 
 ```
-mistral-ocr-python/
+mistral-ocr/
 ├── mistral_ocr/              # Main package
 │   ├── __init__.py
 │   ├── __main__.py           # CLI entry point