fix naming

snippets/is-divisible.md

@@ -0,0 +1,8 @@
+### Divisible by number
+
+Use the modulo operator (`%`) to check if the remainder is equal to `0`.
+
+```js
+const isDivisible = (dividend, divisor) => dividend % divisor === 0;
+// isDivisible(6,3) -> true
+```