fix trove classifiers

setup.cfg

@@ -6,7 +6,21 @@ long-description-content-type = text/markdown; charset=UTF-8
 author = Piotr Maślanka
 author_email = piotr.maslanka@dronehub.ai
 description = A library for serializing JSON in the MINIJSON format
-url = https://git.cervirobotics.com/dronehub/minijson
+url = https://git.cervirobotics.com/Dronehub/minijson
+project-urls =
+    Documentation = https://minijson.readthedocs.io/
+	Code = https://github.com/Dronehub/minijson
+	Issue tracker = https://github.com/Dronehub/minijson/issues
+classifier =
+    Development Status :: 4 - Beta
+    Programming Language :: Python
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: Implementation :: CPython
+    Operating System :: OS Independent
+    License :: OSI Approved :: MIT License
+    Topic :: Software Development :: Libraries
 
 [pycodestyle]
 max-line-length = 100
@@ -17,3 +31,5 @@ max-line-length = 100
 [bdist_wheel]
 universal = 0
 
+[options]
+python_requires = !=2.7.*,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*