Fixed installation missing icons

setup.py

-import setuptools
 from os import path
 
+import setuptools
+
 this_directory = path.abspath(path.dirname(__file__))
 with open(path.join(this_directory, 'README.md'), encoding='utf-8') as f:
     long_description = f.read()
 
 setuptools.setup(
     long_description=long_description,
-    long_description_content_type='text/markdown'
+    long_description_content_type='text/markdown',
+    package_data={
+        '': ['*.png']
+    }
 )