Add .editorconfig

.editorconfig

@@ -0,0 +1,15 @@
+# https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = tab
+insert_final_newline = true
+trim_trailing_whitespace = false
+
+[{.*,*.md,*.json,*.toml,*.yml,}]
+indent_style = space