Add "Reversed Strings" kata

Author: juan-antonio-ledesma

8-kyu/reversed-strings.md

@@ -0,0 +1,22 @@
+<h1>Reversed Strings <sup><sup>8 Kyu</sup></sup></h1>
+
+<sup>
+  <a href="https://www.codewars.com/kata/5168bb5dfe9a00b126000018">
+    <strong>LINK TO THE KATA</strong>
+  </a> - <code>STRINGS</code> <code>FUNDAMENTALS</code>
+</sup>
+
+## Description
+
+Complete the solution so that it reverses the string passed into it.
+
+```
+'world'  =>  'dlrow'
+'word'   =>  'drow'
+```
+
+## Solution
+
+```javascript
+const solution = str => str.split('').reverse().join('')
+```

README.md

@@ -246,4 +246,5 @@ JavaScript katas on Codewars are programming challenges that help you improve yo
 - **[Remove First and Last Character Part Two](./8-kyu/remove-first-and-last-character-part-two.md)**<br><sup>`FUNDAMENTALS` `ARRAYS` `STRINGS`</sup>
 - **[Removing Elements](./8-kyu/removing-elements.md)**<br><sup>`LISTS` `ARRAYS` `FUNDAMENTALS`</sup>
 - **[Return Negative](./8-kyu/return-negative.md)**<br><sup>`FUNDAMENTALS`</sup>
+- **[Reversed Strings](./8-kyu/reversed-strings.md)**<br><sup>`STRINGS` `FUNDAMENTALS`</sup>
 - **[Simple Comparison?](./8-kyu/simple-comparison.md)**<br><sup>`FUNDAMENTALS` `STRINGS`</sup>