docs: add tkoyama010 as a contributor for code, a11y, and infra (#471)

* 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

@@ -775,7 +775,9 @@
         "review",
         "doc",
         "translation",
-        "ideas"
+        "ideas",
+        "a11y",
+        "infra"
       ]
     },
     {

README.md

@@ -182,7 +182,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://mentat.za.net"><img src="https://avatars.githubusercontent.com/u/45071?v=4?s=100" width="100px;" alt="Stefan van der Walt"/><br /><sub><b>Stefan van der Walt</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=stefanv" title="Code">💻</a> <a href="#design-stefanv" title="Design">🎨</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3Astefanv" title="Reviewed Pull Requests">👀</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://stefaniemolin.com"><img src="https://avatars.githubusercontent.com/u/24376333?v=4?s=100" width="100px;" alt="Stefanie Molin"/><br /><sub><b>Stefanie Molin</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=stefmolin" title="Code">💻</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3Astefmolin" title="Reviewed Pull Requests">👀</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://stefanorivera.com/"><img src="https://avatars.githubusercontent.com/u/442117?v=4?s=100" width="100px;" alt="Stefano Rivera"/><br /><sub><b>Stefano Rivera</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3Astefanor" title="Reviewed Pull Requests">👀</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/tkoyama010"><img src="https://avatars.githubusercontent.com/u/7513610?v=4?s=100" width="100px;" alt="Tetsuo Koyama"/><br /><sub><b>Tetsuo Koyama</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=tkoyama010" title="Code">💻</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3Atkoyama010" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/pyOpenSci/python-package-guide/commits?author=tkoyama010" title="Documentation">📖</a> <a href="#translation-tkoyama010" title="Translation">🌍</a> <a href="#ideas-tkoyama010" title="Ideas, Planning, & Feedback">🤔</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/tkoyama010"><img src="https://avatars.githubusercontent.com/u/7513610?v=4?s=100" width="100px;" alt="Tetsuo Koyama"/><br /><sub><b>Tetsuo Koyama</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=tkoyama010" title="Code">💻</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3Atkoyama010" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/pyOpenSci/python-package-guide/commits?author=tkoyama010" title="Documentation">📖</a> <a href="#translation-tkoyama010" title="Translation">🌍</a> <a href="#ideas-tkoyama010" title="Ideas, Planning, & Feedback">🤔</a> <a href="#a11y-tkoyama010" title="Accessibility">️️️️♿️</a> <a href="#infra-tkoyama010" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/tomalrussell"><img src="https://avatars.githubusercontent.com/u/2762769?v=4?s=100" width="100px;" alt="Tom Russell"/><br /><sub><b>Tom Russell</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=tomalrussell" title="Code">💻</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3Atomalrussell" title="Reviewed Pull Requests">👀</a> <a href="#tutorial-tomalrussell" title="Tutorials">✅</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Zeitsperre"><img src="https://avatars.githubusercontent.com/u/10819524?v=4?s=100" width="100px;" alt="Trevor James Smith"/><br /><sub><b>Trevor James Smith</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=Zeitsperre" title="Code">💻</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3AZeitsperre" title="Reviewed Pull Requests">👀</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/tylerjbonnell/"><img src="https://avatars.githubusercontent.com/u/89505514?v=4?s=100" width="100px;" alt="Tyler Bonnell"/><br /><sub><b>Tyler Bonnell</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=Tyler-Bonnell" title="Code">💻</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3ATyler-Bonnell" title="Reviewed Pull Requests">👀</a></td>