docs: update README.md [skip ci]

Author: allcontributors[bot]

Diff for: README.md

@@ -44,6 +44,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/AnshMishra2001"><img src="https://avatars0.githubusercontent.com/u/55917516?v=4" width="100px;" alt=""/><br /><sub><b>AnshMishra2001</b></sub></a><br /><a href="https://github.com/ephremdeme/data-structure-and-algorithms/commits?author=AnshMishra2001" title="Code">💻</a> <a href="#ideas-AnshMishra2001" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/mananchawla2005"><img src="https://avatars3.githubusercontent.com/u/42414965?v=4" width="100px;" alt=""/><br /><sub><b>Manan Chawla</b></sub></a><br /><a href="https://github.com/ephremdeme/data-structure-and-algorithms/commits?author=mananchawla2005" title="Code">💻</a> <a href="#ideas-mananchawla2005" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/milan090"><img src="https://avatars3.githubusercontent.com/u/56679289?v=4" width="100px;" alt=""/><br /><sub><b>Milan</b></sub></a><br /><a href="https://github.com/ephremdeme/data-structure-and-algorithms/commits?author=milan090" title="Code">💻</a> <a href="#design-milan090" title="Design">🎨</a></td>
+    <td align="center"><a href="https://www.linkedin.com/in/gaurav-madan-210b62177/"><img src="https://avatars1.githubusercontent.com/u/54912404?v=4" width="100px;" alt=""/><br /><sub><b>Gaurav Madan</b></sub></a><br /><a href="https://github.com/ephremdeme/data-structure-and-algorithms/commits?author=gauravmadan583" title="Code">💻</a></td>
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