Add editorconfig

.editorconfig

@@ -0,0 +1,14 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = tab
+indent_size = tab
+smart_tab = true
+
+[{*.yaml,*.yml,*.nix}]
+indent_style = space
+indent_size = 2