Update snippet descriptions

snippets/palindrome.md

@@ -3,10 +3,11 @@ title: palindrome
 tags: string,intermediate
 ---
 
-Returns `true` if the given string is a palindrome, `false` otherwise.
+Checks if the given string is a palindrome.
 
-- Convert the string to `String.prototype.toLowerCase()` and use `String.prototype.replace()` to remove non-alphanumeric characters from it.
-- Then, use the spread operator (`...`) to split the string into individual characters, `Array.prototype.reverse()`, `String.prototype.join('')` and compare it to the original, unreversed string, after converting it to `String.prototype.toLowerCase()`.
+- Normalize the string to `String.prototype.toLowerCase()` and use `String.prototype.replace()` to remove non-alphanumeric characters from it.
+- Use the spread operator (`...`) to split the normalized string into individual characters.
+- Use `Array.prototype.reverse()`, `String.prototype.join('')` and compare the result to the normalized string.
 
 ```js
 const palindrome = str => {
@@ -17,4 +18,4 @@ const palindrome = str => {
 
 ```js
 palindrome('taco cat'); // true
-```
+```