Update setup.py

Author: jackton1

setup.py

@@ -60,7 +60,7 @@
     author_email="[email protected]",
     python_requires=">=3.6",
     classifiers=[
-        "Development Status :: 3 - Alpha",
+        "Development Status :: 4 - Beta",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: MIT License",
         "Natural Language :: English",