add cleanup script

cleanup.py

@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+"""
+Cleans up `README.md`.
+"""
+
+import codecs
+
+
+def fix_dashes(lines):
+    """
+    """
+
+    fixed_lines = []
+
+    within_content = False
+
+    for line in lines:
+
+        # Only touch the content, not the prologue.
+        if within_content:
+            fixed_lines.append(line.replace(u' - ', u' — '))
+        #
+        else:
+            if line.startswith(u'## Applications'):
+                within_content = True
+
+            fixed_lines.append(line)
+
+    return fixed_lines
+
+# end def fix_dashes
+
+
+# Read the awesome file.
+with codecs.open('README.md', encoding='utf8') as awesome_file:
+    awesome_lines = awesome_file.readlines()
+
+awesome_lines = fix_dashes(awesome_lines)
+
+# Write the awesome file.
+with codecs.open('README.md', 'wb', encoding='utf8') as awesome_file:
+    awesome_file.writelines(awesome_lines)