Update snippet descriptions

snippets/splitLines.md

@@ -1,6 +1,6 @@
 ---
 title: splitLines
-tags: string,beginner
+tags: string,regexp,beginner
 ---
 
 Splits a multiline string into an array of lines.
@@ -12,5 +12,6 @@ const splitLines = str => str.split(/\r?\n/);
 ```
 
 ```js
-splitLines('This\nis a\nmultiline\nstring.\n'); // ['This', 'is a', 'multiline', 'string.' , '']
+splitLines('This\nis a\nmultiline\nstring.\n');
+// ['This', 'is a', 'multiline', 'string.' , '']
 ```