Add @martijnvandermarel as a contributor

Author: snowman2

.all-contributorsrc

@@ -454,6 +454,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "martijnvandermarel",
+      "name": "Martijn van der Marel",
+      "avatar_url": "https://avatars.githubusercontent.com/u/23376251?v=4",
+      "profile": "https://github.com/martijnvandermarel",
+      "contributions": [
+        "bug"
+      ]
     }
   ],
   "contributorsPerLine": 7

AUTHORS.rst

@@ -69,6 +69,7 @@ Thanks goes to these wonderful people (`emoji key <https://allcontributors.org/d
         <tr>
           <td align="center" valign="top" width="14.28%"><a href="https://github.com/trchudley"><img src="https://avatars.githubusercontent.com/u/24896931?v=4?s=100" width="100px;" alt="Tom Chudley"/><br /><sub><b>Tom Chudley</b></sub></a><br /><a href="https://github.com/corteva/rioxarray/commits?author=trchudley" title="Code">💻</a></td>
           <td align="center" valign="top" width="14.28%"><a href="https://github.com/acoque"><img src="https://avatars.githubusercontent.com/u/35691279?v=4?s=100" width="100px;" alt="acoque"/><br /><sub><b>acoque</b></sub></a><br /><a href="https://github.com/corteva/rioxarray/commits?author=acoque" title="Documentation">📖</a></td>
+          <td align="center" valign="top" width="14.28%"><a href="https://github.com/martijnvandermarel"><img src="https://avatars.githubusercontent.com/u/23376251?v=4?s=100" width="100px;" alt="Martijn van der Marel"/><br /><sub><b>Martijn van der Marel</b></sub></a><br /><a href="https://github.com/corteva/rioxarray/issues?q=author%3Amartijnvandermarel" title="Bug reports">🐛</a></td>
         </tr>
       </tbody>
     </table>

README.rst

@@ -9,7 +9,7 @@ rasterio xarray extension.
    :alt: Join the chat at https://gitter.im/rioxarray/community
    :target: https://gitter.im/rioxarray/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
 
-.. image:: https://img.shields.io/badge/all_contributors-44-orange.svg?style=flat-square
+.. image:: https://img.shields.io/badge/all_contributors-45-orange.svg?style=flat-square
     :alt: All Contributors
     :target: https://github.com/corteva/rioxarray/blob/master/AUTHORS.rst