Add some file

.editorconfig

@@ -0,0 +1,29 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+root = true
+
+[*]
+
+indent_style = space
+
+indent_size = 2
+
+end_of_line = lf
+
+charset = utf-8
+
+trim_trailing_whitespace = true
+
+insert_final_newline = true
+
+[*.md]
+
+trim_trailing_whitespace = false
+
+[*.py]
+
+indent_size = 4
+
+[Makefile]
+
+indent_style = tab