add question 58 length of last word

Author: rishabh1403

1-100/58-length-of-last-word.js

@@ -1,3 +1,10 @@
+/*
+Author :- Rishabh Jain <contact@rishabh1403.com>
+Solution for :- https://leetcode.com/problems/length-of-last-word/
+blog for this code :- https://rishabh1403.com/posts/coding/leetcode/2020/03/leetcode-length-of-last-word
+youtube video :- https://youtu.be/2PQ4vtnLfnw
+*/
+
 // library methods
 
 var lengthOfLastWord = function (s) {

README.md

@@ -16,6 +16,8 @@ Solutions of all the questions from Leetcode in JavaScript.
 
 - 20.Valid Parentheses - [Question](https://leetcode.com/problems/valid-parentheses/) | [Source Code](https://github.com/rishabh1403/leetcode-javascript-solutions/blob/master/1-100/20-valid-parentheses.js) | [Blog](https://rishabh1403.com/leetcode-solution-of-valid-parentheses-in-javascript)
 
+- 58.Length of Last Word - [Question](https://leetcode.com/problems/length-of-last-word/) | [Source Code](https://github.com/rishabh1403/leetcode-javascript-solutions/blob/master/1-100/58-length-of-last-word.js) | [Blog](https://rishabh1403.com/posts/coding/leetcode/2020/03/leetcode-length-of-last-word) | [Youtube Video](https://youtu.be/2PQ4vtnLfnw)
+
 - 167.Two Sum-II - [Question](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/) | [Source Code](https://github.com/rishabh1403/leetcode-javascript-solutions/blob/master/101-200/167-two-sum-ii.js) | [Blog](https://rishabh1403.com/leetcode-solution-of-two-sum-ii-in-javascript) | [Youtube Video](https://www.youtube.com/watch?v=MjxN8HIzIRc)
 
 - 242.Valid Anagram - [Question](https://leetcode.com/problems/valid-anagram/) | [Source Code](https://github.com/rishabh1403/leetcode-javascript-solutions/blob/master/201-300/242-valid-anagram.js) | [Blog](https://rishabh1403.com/posts/coding/leetcode/2020/03/leetcode-valid-anagram) | [Youtube Video](https://youtu.be/7z25qqUCOUE)