docs: add NickleDave as a contributor for doc, and design (pyOpenSci#25)

* docs: update README.md [skip ci]

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

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -7,6 +7,10 @@
   "commitConvention": "angular",
   "contributors": [
     {
+      "login": "NickleDave",
+      "name": "David Nicholson",
+      "avatar_url": "https://avatars.githubusercontent.com/u/11934090?v=4",
+      "profile": "https://nicholdav.info/",
       "login": "lwasser",
       "name": "Leah Wasser",
       "avatar_url": "https://avatars.githubusercontent.com/u/7649194?v=4",

README.md

@@ -77,6 +77,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tbody>
     <tr>
+      <td align="center"><a href="https://nicholdav.info/"><img src="https://avatars.githubusercontent.com/u/11934090?v=4?s=100" width="100px;" alt="David Nicholson"/><br /><sub><b>David Nicholson</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=NickleDave" title="Documentation">📖</a> <a href="#design-NickleDave" title="Design">🎨</a></td>
       <td align="center"><a href="http://www.leahwasser.com"><img src="https://avatars.githubusercontent.com/u/7649194?v=4?s=100" width="100px;" alt="Leah Wasser"/><br /><sub><b>Leah Wasser</b></sub></a><br /><a href="https://github.com/pyOpenSci/python-package-guide/commits?author=lwasser" title="Documentation">📖</a> <a href="#design-lwasser" title="Design">🎨</a></td>
     </tr>
   </tbody>