Update article.md

Author: zzy0302

1-js/02-first-steps/05-types/article.md

@@ -82,8 +82,7 @@ const bigInt = 1234567890123456789012345678901234567890n;
 As `BigInt` numbers are rarely needed, we don't cover them here, but devoted them a separate chapter <info:bigint>. Read it when you need such big numbers.
 
 ```smart header="Compatibility issues"
-Right now `BigInt` is supported in the latest version Firefox/Chrome/Edge and Safari with iOS 14, but not in IE. 
-
+Right now `BigInt` is supported in the latest version Firefox/Chrome/Edge and Safari with iOS 14, but not in IE.
 ```
 [More Details](https://caniuse.com/?search=bigint) about BigInt compatibility.