Give this repo an .editorconfig file

.editorconfig

@@ -0,0 +1,22 @@
+# This is a file to standardize editor settings: http://EditorConfig.org
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+indent_style = space
+indent_size = 4
+max_line_length = 120
+trim_trailing_whitespace = true
+
+[{Makefile, *.mk}]
+indent_style = tab
+
+[*.{js,json,yml,yaml}]
+indent_size = 2
+
+[*.rst]
+max_line_length = 79
+
+[*.diff]
+trim_trailing_whitespace = false