setup.py: add project_urls

Author: greenrobot

setup.py

@@ -8,10 +8,14 @@
     name="objectbox",
     version=str(objectbox.version),
     author="ObjectBox",
-    description="ObjectBox is a superfast database for objects",
+    description="ObjectBox is a superfast lightweight database for objects",
     long_description=long_description,
     long_description_content_type="text/markdown",
-    url="https://github.com/objectbox/objectbox-python",
+    url="https://objectbox.io",
+    project_urls={
+        'GitHub': 'https://github.com/objectbox/objectbox-python',
+        'Tracker': 'https://github.com/objectbox/objectbox-python/issues',
+    },
     python_requires='>=3.4, <4',
     license='Apache 2.0',
     classifiers=[