docs: update README.md

Author: allcontributors[bot]

README.md

@@ -20,7 +20,7 @@
 **Contributors**
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-4-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-5-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 # CPP_PTB
@@ -114,6 +114,7 @@ Thanks goes to these wonderful people
     <td align="center"><a href="https://github.com/marcobarilari"><img src="https://avatars3.githubusercontent.com/u/38101692?v=4?s=100" width="100px;" alt=""/><br /><sub><b>marcobarilari</b></sub></a><br /><a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=marcobarilari" title="Code">💻</a> <a href="#design-marcobarilari" title="Design">🎨</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=marcobarilari" title="Documentation">📖</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/issues?q=author%3Amarcobarilari" title="Bug reports">🐛</a> <a href="#userTesting-marcobarilari" title="User Testing">📓</a> <a href="#ideas-marcobarilari" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/CerenB"><img src="https://avatars1.githubusercontent.com/u/10451654?v=4?s=100" width="100px;" alt=""/><br /><sub><b>CerenB</b></sub></a><br /><a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=CerenB" title="Code">💻</a> <a href="#design-CerenB" title="Design">🎨</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=CerenB" title="Documentation">📖</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/pulls?q=is%3Apr+reviewed-by%3ACerenB" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=CerenB" title="Tests">⚠️</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/issues?q=author%3ACerenB" title="Bug reports">🐛</a> <a href="#userTesting-CerenB" title="User Testing">📓</a> <a href="#ideas-CerenB" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/fedefalag"><img src="https://avatars.githubusercontent.com/u/50373329?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Fede F.</b></sub></a><br /><a href="#ideas-fedefalag" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=fedefalag" title="Code">💻</a> <a href="#content-fedefalag" title="Content">🖋</a></td>
+    <td align="center"><a href="https://github.com/iqrashahzad14"><img src="https://avatars.githubusercontent.com/u/75671348?v=4?s=100" width="100px;" alt=""/><br /><sub><b>iqrashahzad14</b></sub></a><br /><a href="https://github.com/cpp-lln-lab/CPP_PTB/issues?q=author%3Aiqrashahzad14" title="Bug reports">🐛</a> <a href="https://github.com/cpp-lln-lab/CPP_PTB/commits?author=iqrashahzad14" title="Tests">⚠️</a></td>
   </tr>
 </table>