Update python package classifiers and remove Private

Author: piotr-grodek-dsai

setup.cfg

@@ -3,23 +3,25 @@ name = ds_pycontain
 # do not change version by hand: use bump_version.sh
 version = file: src/ds_pycontain/VERSION
 description = "deepsense.ai wrapper around docker python API"
+long_description = file: DESCRIPTION.md
+long_description_content_type = text/markdown
 author = deepsense.ai
 author_email = contact@deepsense.ai
 license = MIT License (MIT)
 license_files = LICENSE
 classifiers =
-    Development Status :: 1 - Planning
-    Environment :: Console
-    Intended Audience :: Science/Research
+    Development Status :: 3 - Alpha
+    Intended Audience :: Developers
     License :: MIT License (MIT)
     Natural Language :: English
+    License :: OSI Approved :: MIT License
     Operating System :: Independent
+    Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
-    Private :: Do Not Upload
 
 [options]
 package_dir=