docs: add cuteshaun as a contributor for a11y, and code (#544)

Adds @cuteshaun as a contributor for a11y, code.

This was requested by samcunliffe [in this
comment](#542 (comment))

---------

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -300,6 +300,16 @@
         "a11y",
         "ideas"
       ]
+    },
+    {
+      "login": "cuteshaun",
+      "name": "Andrii Tsapko",
+      "avatar_url": "https://avatars.githubusercontent.com/u/28014041?v=4",
+      "profile": "https://github.com/cuteshaun",
+      "contributions": [
+        "a11y",
+        "code"
+      ]
     }
   ]
 }

README.md

@@ -116,6 +116,7 @@ uv pip install -e ".[dev]"
       <td align="center" valign="top" width="14.28%"><a href="http://drandrewmitchell.com"><img src="https://avatars.githubusercontent.com/u/22335636?v=4?s=100" width="100px;" alt="Andrew Mitchell"/><br /><sub><b>Andrew Mitchell</b></sub></a><br /><a href="#bug-MitchellAcoustics" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://www.ucl.ac.uk/advanced-research-computing/advanced-research-computing-centre"><img src="https://avatars.githubusercontent.com/u/24316371?v=4?s=100" width="100px;" alt="Kimberly Meechan"/><br /><sub><b>Kimberly Meechan</b></sub></a><br /><a href="#bug-K-Meech" title="Bug reports">🐛</a> <a href="#a11y-K-Meech" title="Accessibility">️️️️♿️</a> <a href="#review-K-Meech" title="Reviewed Pull Requests">👀</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/jamesprime"><img src="https://avatars.githubusercontent.com/u/17751241?v=4?s=100" width="100px;" alt="James Prime"/><br /><sub><b>James Prime</b></sub></a><br /><a href="#a11y-jamesprime" title="Accessibility">️️️️♿️</a> <a href="#ideas-jamesprime" title="Ideas, Planning, & Feedback">🤔</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/cuteshaun"><img src="https://avatars.githubusercontent.com/u/28014041?v=4?s=100" width="100px;" alt="Andrii Tsapko"/><br /><sub><b>Andrii Tsapko</b></sub></a><br /><a href="#a11y-cuteshaun" title="Accessibility">️️️️♿️</a> <a href="#code-cuteshaun" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>