setup.py, Manual: Update for readme.md

Author: tony

MANIFEST.in

@@ -1,4 +1,4 @@
-include README.rst LICENSE CHANGES pyproject.toml .tmuxp.yaml
+include README.md LICENSE CHANGES pyproject.toml .tmuxp.yaml
 include requirements/*.txt
 recursive-include docs *.rst
 recursive-include tests *.py *.yaml *.json *.sh

setup.py

@@ -14,9 +14,9 @@
     tests_reqs = [line for line in f.read().split('\n') if line]
 
 if sys.version_info[0] > 2:
-    readme = open('README.rst', encoding='utf-8').read()
+    readme = open('README.md', encoding='utf-8').read()
 else:
-    readme = open('README.rst').read()
+    readme = open('README.md').read()
 
 history = open('CHANGES').read().replace('.. :changelog:', '')