chore: Bump version to 0.2.3

Author: abawchen

setup.py

@@ -2,11 +2,10 @@
 
 setup(
     name='graphene-mongo',
-    version='0.2.2',
+    version='0.2.3',
 
     description='Graphene Mongoengine integration',
     long_description=open('README.rst').read(),
-    # long_description_content_type='text/markdown',
     url='https://github.com/graphql-python/graphene-mongo',
     author='Abaw Chen',
     author_email='[email protected]',