docs: add yihong0618 as a contributor for code (#44)

* docs: update README.md

* docs: update .all-contributorsrc

---------

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -74,6 +74,15 @@
         "code",
         "ideas"
       ]
+    },
+    {
+      "login": "yihong0618",
+      "name": "yihong",
+      "avatar_url": "https://avatars.githubusercontent.com/u/15976103?v=4",
+      "profile": "http://yihong.run",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -275,6 +275,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://blog.mapotofu.org/"><img src="https://avatars.githubusercontent.com/u/12974685?v=4?s=70" width="70px;" alt="Keming"/><br /><sub><b>Keming</b></sub></a><br /><a href="https://github.com/tensorchord/pgvecto.rs/issues?q=author%3Akemingy" title="Bug reports">🐛</a> <a href="https://github.com/tensorchord/pgvecto.rs/commits?author=kemingy" title="Code">💻</a> <a href="https://github.com/tensorchord/pgvecto.rs/commits?author=kemingy" title="Documentation">📖</a> <a href="#ideas-kemingy" title="Ideas, Planning, & Feedback">🤔</a> <a href="#infra-kemingy" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://usamoi.com"><img src="https://avatars.githubusercontent.com/u/79277854?v=4?s=70" width="70px;" alt="Usamoi"/><br /><sub><b>Usamoi</b></sub></a><br /><a href="https://github.com/tensorchord/pgvecto.rs/commits?author=usamoi" title="Code">💻</a> <a href="#ideas-usamoi" title="Ideas, Planning, & Feedback">🤔</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/odysa"><img src="https://avatars.githubusercontent.com/u/22908409?v=4?s=70" width="70px;" alt="odysa"/><br /><sub><b>odysa</b></sub></a><br /><a href="https://github.com/tensorchord/pgvecto.rs/commits?author=odysa" title="Documentation">📖</a> <a href="https://github.com/tensorchord/pgvecto.rs/commits?author=odysa" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="http://yihong.run"><img src="https://avatars.githubusercontent.com/u/15976103?v=4?s=70" width="70px;" alt="yihong"/><br /><sub><b>yihong</b></sub></a><br /><a href="https://github.com/tensorchord/pgvecto.rs/commits?author=yihong0618" title="Code">💻</a></td>
     </tr>
   </tbody>
   <tfoot>