fix naming

snippets/get-max.md

@@ -0,0 +1,8 @@
+### Get max value from array
+
+Use `Math.max()` combined with the spread operator (`...`) to get the maximum value in the array.
+
+```js
+const arrayMax = arr => Math.max(...arr);
+// arrayMax([10, 1, 5]) -> 10
+```