docs: use markdown for readme file

.gitignore

@@ -1 +1,3 @@
+*~
+*.pyc
 rattail_dash.egg-info/

README.md

@@ -0,0 +1,12 @@
+
+# rattail-dash
+
+This package contains some helper logic, as well as a sample app, to
+show how a [Dash](https://dash.plot.ly/) app can display Rattail (and
+specifically Trainwreck) data.
+
+Rattail is a retail software framework, released under the GNU General
+Public License.
+
+Please see Rattail's [home page](https://rattailproject.org/) for more
+information.

README.rst

@@ -1,16 +0,0 @@
-
-rattail-dash
-============
-
-This package contains some helper logic, as well as a sample app, to
-show how a `Dash`_ app can display Rattail (and specifically
-Trainwreck) data.
-
-.. _Dash: https://dash.plot.ly/
-
-Rattail is a retail software framework, released under the GNU General
-Public License.
-
-Please see Rattail's `home page`_ for more information.
-
-.. _`home page`: https://rattailproject.org/

setup.py

@@ -27,7 +27,7 @@ from setuptools import setup, find_packages
 
 here = os.path.abspath(os.path.dirname(__file__))
 exec(open(os.path.join(here, 'rattail_dash', '_version.py')).read())
-README = open(os.path.join(here, 'README.rst')).read()
+README = open(os.path.join(here, 'README.md')).read()
 
 
 requires = [