Add TOML to editor-config (#2373)

.editorconfig

@@ -1,12 +1,12 @@
 root=true
 
-[*.{json,md,yml,yaml}]
+[*.{json,md,toml,yml,yaml}]
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
-[*.json]
+[*.{json,toml}]
 indent_style = space
 indent_size = 2