docs: add MaverickWingman as a contributor for code (#2866)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

Author: allcontributors[bot]

.all-contributorsrc

@@ -2963,7 +2963,8 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/76624290?v=4",
       "profile": "https://github.com/MaverickWingman",
       "contributions": [
-        "doc"
+        "doc",
+        "code"
       ]
     },
     {

README.md

@@ -492,7 +492,7 @@ This project is licensed under the terms of the MIT license.
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/jerryyummy"><img src="https://avatars.githubusercontent.com/u/62087610?v=4?s=100" width="100px;" alt="jerryyummy"/><br /><sub><b>jerryyummy</b></sub></a><br /><a href="#translation-jerryyummy" title="Translation">🌍</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://manojkumarchow.github.io/"><img src="https://avatars.githubusercontent.com/u/28005510?v=4?s=100" width="100px;" alt="Manoj Chowdary"/><br /><sub><b>Manoj Chowdary</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Manojkumarchow" title="Code">💻</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/MaverickWingman"><img src="https://avatars.githubusercontent.com/u/76624290?v=4?s=100" width="100px;" alt="Aditya"/><br /><sub><b>Aditya</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=MaverickWingman" title="Documentation">📖</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/MaverickWingman"><img src="https://avatars.githubusercontent.com/u/76624290?v=4?s=100" width="100px;" alt="Aditya"/><br /><sub><b>Aditya</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=MaverickWingman" title="Documentation">📖</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=MaverickWingman" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/nooynayr"><img src="https://avatars.githubusercontent.com/u/141696269?v=4?s=100" width="100px;" alt="nooynayr"/><br /><sub><b>nooynayr</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nooynayr" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/pushpander1010"><img src="https://avatars.githubusercontent.com/u/41006191?v=4?s=100" width="100px;" alt="CYBERCRUX2"/><br /><sub><b>CYBERCRUX2</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pushpander1010" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/luismateoh"><img src="https://avatars.githubusercontent.com/u/44934142?v=4?s=100" width="100px;" alt="Luis Mateo Hincapié Martinez"/><br /><sub><b>Luis Mateo Hincapié Martinez</b></sub></a><br /><a href="#translation-luismateoh" title="Translation">🌍</a></td>