docs: add pradyunsg as a contributor for code, design, and review (pyOpenSci#52)

* 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

@@ -160,6 +160,17 @@
         "design",
         "review"
       ]
+    },
+    {
+      "login": "pradyunsg",
+      "name": "Pradyun Gedam",
+      "avatar_url": "https://avatars.githubusercontent.com/u/3275593?v=4",
+      "profile": "https://pradyunsg.me",
+      "contributions": [
+        "code",
+        "design",
+        "review"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -1,6 +1,6 @@
 # <img src="images/logo/logo.png" width=40 /> pyOpenSci Scientific Python Open Source Packaging Guide
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-15-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-16-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 ![GitHub release (latest by date)](https://img.shields.io/github/v/release/pyopensci/python-package-guide?color=purple&display_name=tag&style=plastic)
@@ -96,6 +96,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/rgommers/"><img src="https://avatars.githubusercontent.com/u/98330?v=4?s=100" width="100px;" alt="Ralf Gommers"/><br /><sub><b>Ralf Gommers</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=rgommers" title="Code">💻</a> <a href="#design-rgommers" title="Design">🎨</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3Argommers" title="Reviewed Pull Requests">👀</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://pradyunsg.me"><img src="https://avatars.githubusercontent.com/u/3275593?v=4?s=100" width="100px;" alt="Pradyun Gedam"/><br /><sub><b>Pradyun Gedam</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=pradyunsg" title="Code">💻</a> <a href="#design-pradyunsg" title="Design">🎨</a> <a href="https://github.com/pyOpenSci/python-package-guide/pulls?q=is%3Apr+reviewed-by%3Apradyunsg" title="Reviewed Pull Requests">👀</a></td>
     </tr>
   </tbody>
 </table>