Apply new format to snippets and template

snippets/maxBy.md

@@ -5,7 +5,7 @@ tags: math,array,function,beginner
 
 Returns the maximum value of an array, after mapping each element to a value using the provided function.
 
-Use `Array.prototype.map()` to map each element to the value returned by `fn`, `Math.max()` to get the maximum value.
+- Use `Array.prototype.map()` to map each element to the value returned by `fn`, `Math.max()` to get the maximum value.
 
 ```js
 const maxBy = (arr, fn) => Math.max(...arr.map(typeof fn === 'function' ? fn : val => val[fn]));
@@ -14,4 +14,4 @@ const maxBy = (arr, fn) => Math.max(...arr.map(typeof fn === 'function' ? fn : v
 ```js
 maxBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], o => o.n); // 8
 maxBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], 'n'); // 8
-```
+```