Snippet format update

To match the starter (for the migration)

snippets/hashBrowser.md

@@ -1,4 +1,7 @@
-### hashBrowser
+---
+title: hashBrowser
+tags: browser,utility,advanced,promise,advanced
+---
 
 Creates a hash for a value using the [SHA-256](https://en.wikipedia.org/wiki/SHA-2) algorithm. Returns a promise.
 
@@ -17,4 +20,4 @@ const hashBrowser = val =>
 
 ```js
 hashBrowser(JSON.stringify({ a: 'a', b: [1, 2, 3, 4], foo: { c: 'bar' } })).then(console.log); // '04aa106279f5977f59f9067fa9712afc4aedc6f5862a8defc34552d8c7206393'
-```
+```