Update links

Author: albertyw

MANIFEST.in

@@ -1,2 +1,2 @@
-include README.rst
+include README.md
 include CHANGELOG.md

setup.py

@@ -9,7 +9,7 @@
 
 # Get the long description from the README file
 here = path.abspath(path.dirname(__file__))
-with open(path.join(here, 'README.rst'), encoding='utf-8') as f:
+with open(path.join(here, 'README.md'), encoding='utf-8') as f:
     long_description = f.read()
 
 about: Dict[str, str] = {}