Update snippet descriptions

snippets/prefix.md

@@ -3,7 +3,7 @@ title: prefix
 tags: browser,intermediate
 ---
 
-Returns the prefixed version (if necessary) of a CSS property that the browser supports.
+Prefixes a CSS property based on the current browser.
 
 - Use `Array.prototype.findIndex()` on an array of vendor prefix strings to test if `Document.body` has one of them defined in its `CSSStyleDeclaration` object, otherwise return `null`.
 - Use `String.prototype.charAt()` and `String.prototype.toUpperCase()` to capitalize the property, which will be appended to the vendor prefix string.
@@ -13,12 +13,15 @@ const prefix = prop => {
   const capitalizedProp = prop.charAt(0).toUpperCase() + prop.slice(1);
   const prefixes = ['', 'webkit', 'moz', 'ms', 'o'];
   const i = prefixes.findIndex(
-    prefix => typeof document.body.style[prefix ? prefix + capitalizedProp : prop] !== 'undefined'
+    prefix =>
+      typeof document.body.style[prefix ? prefix + capitalizedProp : prop] !==
+      'undefined'
   );
   return i !== -1 ? (i === 0 ? prop : prefixes[i] + capitalizedProp) : null;
 };
 ```
 
 ```js
-prefix('appearance'); // 'appearance' on a supported browser, otherwise 'webkitAppearance', 'mozAppearance', 'msAppearance' or 'oAppearance'
+prefix('appearance');
+// 'appearance' on a supported browser, otherwise 'webkitAppearance', 'mozAppearance', 'msAppearance' or 'oAppearance'
 ```