Apply new format to snippets and template

snippets/defaults.md

@@ -5,7 +5,7 @@ tags: object,intermediate
 
 Assigns default values for all properties in an object that are `undefined`.
 
-Use `Object.assign()` to create a new empty object and copy the original one to maintain key order, use `Array.prototype.reverse()` and the spread operator `...` to combine the default values from left to right, finally use `obj` again to overwrite properties that originally had a value.
+- Use `Object.assign()` to create a new empty object and copy the original one to maintain key order, use `Array.prototype.reverse()` and the spread operator `...` to combine the default values from left to right, finally use `obj` again to overwrite properties that originally had a value.
 
 ```js
 const defaults = (obj, ...defs) => Object.assign({}, obj, ...defs.reverse(), obj);