Update setup.py

Fixing a typo in the classifiers for the package.

Author: spcarte

setup.py

@@ -12,11 +12,11 @@
     packages=find_packages(where='src'),  # Tell setuptools to look in the src/ folder
     package_dir={"": "src"},  # Set the base folder for the packages to src/
     classifiers=["Programming Language :: Python :: 3.11",
-                 "License :: Other/Proprietary License",
-                 'Natural Language :: English',
-                 'Operating System :: Microsoft :: Windows :: Windows 10'
-                 'Operating System :: Microsoft :: Windows :: Windows 11'
-                 'Operating System :: MacOS :: MacOS X'
+                 "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+                 "Natural Language :: English",
+                 "Operating System :: Microsoft :: Windows :: Windows 10",
+                 "Operating System :: Microsoft :: Windows :: Windows 11",
+                 "Operating System :: MacOS :: MacOS X"
                  ],
     python_requires='>=3.8',
     install_requires=[
@@ -28,3 +28,4 @@
         "pyqt5"
         ],
 )
+