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

setup.py

@@ -18,7 +18,7 @@ setup(
     long_description=long_description,
     long_description_content_type="text/markdown",
     author="Mistral OCR Team",
-    url="https://github.com/yourusername/mistral-ocr-python",
+    url="https://github.com/yourusername/mistral-ocr",
     packages=find_packages(),
     install_requires=[
         "requests>=2.25.0",