typo

setup.py

@@ -9,7 +9,7 @@ from sphinxcontrib.d2lang import __version__
 with open('sphinxcontrib/requirements.txt', 'r', encoding='utf8') as file:
     install_requires = list(map(lambda x: x.strip(), file.readlines()))
 
-with open('readme.md', 'r', encoding='utf8') as file:
+with open('README.md', 'r', encoding='utf8') as file:
     long_description = file.read()
 
 setup(

sphinxcontrib/requirements.txt

@@ -1,2 +1,2 @@
-sphinx
+Sphinx
 docutils