docs: add nsmith- as a contributor for code (#286)

* docs: update README.md [skip ci]

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

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

.all-contributorsrc

@@ -94,6 +94,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "nsmith-",
+      "name": "Nicholas Smith",
+      "avatar_url": "https://avatars.githubusercontent.com/u/6587412?v=4",
+      "profile": "https://github.com/nsmith-",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -130,6 +130,7 @@ We would like to acknowledge the contributors that made this project possible ([
   <tr>
     <td align="center"><a href="http://theoryandpractice.org"><img src="https://avatars.githubusercontent.com/u/4458890?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kyle Cranmer</b></sub></a><br /><a href="https://github.com/scikit-hep/hist/commits?author=cranmer" title="Documentation">📖</a></td>
     <td align="center"><a href="http://dantrim.github.io"><img src="https://avatars.githubusercontent.com/u/7841565?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Daniel Antrim</b></sub></a><br /><a href="https://github.com/scikit-hep/hist/commits?author=dantrim" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/nsmith-"><img src="https://avatars.githubusercontent.com/u/6587412?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Nicholas Smith</b></sub></a><br /><a href="https://github.com/scikit-hep/hist/commits?author=nsmith-" title="Code">💻</a></td>
   </tr>
 </table>