minor changes to setup scripts

Author: MichaelBarz

LICENSE LICENSE.txtLICENSE renamed to LICENSE.txt

@@ -0,0 +1,2 @@
+[metadata]
+description-file = README.md

setup.cfg

@@ -1,22 +1,19 @@
 from distutils.core import setup
 import setuptools
 
-with open("README.md", "r") as fh:
-    long_description = fh.read()
-
 setup(
     name='digital_ink_library',
     version='1.4.1',
     packages=['digital_ink_library', 'digital_ink_library.serialization', 'digital_ink_library.conversion'],
     url='https://github.com/DFKI-Interactive-Machine-Learning/digital-ink-library-python',
     license='CC BY-NC-SA 4.0',
+    keywords=['digital pen'],
     author='Alexander Prange, Michael Barz',
     author_email='alexander.prange@dfki.de; michael.barz@dfki.de',
     python_requires='>=3.6.0',
     install_requires=[
             'numpy',
             'scipy'
         ],
-    description='Library for digital ink, written in Python.',
-    long_description=long_description
+    description='Library for digital ink, written in Python.'
 )