Align .editorconfig config syntax.

Author: thet

.editorconfig

@@ -5,7 +5,7 @@ insert_final_newline = true
 trim_trailing_whitespace = true
 charset = utf-8
 
-[*.js,*.json]
+[{*.js,*.json}]
 indent_size = 4
 
 [{*.css,*.scss,*.xml,*.html}]