docs: add unlimitedsola as a contributor for doc, and code (#803)

* docs: update README.md [skip ci]

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

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: allcontributors[bot]

.all-contributorsrc

@@ -347,6 +347,13 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/5166666?v=4",
       "profile": "https://github.com/dzonatan",
       "contributions": ["code"]
+    },
+    {
+      "login": "unlimitedsola",
+      "name": "Sola",
+      "avatar_url": "https://avatars.githubusercontent.com/u/3632663?v=4",
+      "profile": "https://github.com/unlimitedsola",
+      "contributions": ["doc", "code"]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -876,6 +876,9 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/johncming"><img src="https://avatars.githubusercontent.com/u/11719334?v=4?s=100" width="100px;" alt="johncming"/><br /><sub><b>johncming</b></sub></a><br /><a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=johncming" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/dzonatan"><img src="https://avatars.githubusercontent.com/u/5166666?v=4?s=100" width="100px;" alt="Rokas Brazdžionis"/><br /><sub><b>Rokas Brazdžionis</b></sub></a><br /><a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=dzonatan" title="Code">💻</a></td>
     </tr>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/unlimitedsola"><img src="https://avatars.githubusercontent.com/u/3632663?v=4?s=100" width="100px;" alt="Sola"/><br /><sub><b>Sola</b></sub></a><br /><a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=unlimitedsola" title="Documentation">📖</a> <a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=unlimitedsola" title="Code">💻</a></td>
+    </tr>
   </tbody>
 </table>