add mjasperse as a contributor for code (#1027)

* update README.md [skip ci]

* update .all-contributorsrc [skip ci]

---------

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -1060,6 +1060,15 @@
       "contributions": [
         "translation"
       ]
+    },
+    {
+      "login": "mjasperse",
+      "name": "Martijn Jasperse",
+      "avatar_url": "https://avatars.githubusercontent.com/u/146605?v=4",
+      "profile": "https://github.com/mjasperse",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -263,6 +263,7 @@ This library could only exist thanks to the dedication of many volunteers around
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/matt-b8"><img src="https://avatars.githubusercontent.com/u/76793516?v=4?s=100" width="100px;" alt="Matt"/><br /><sub><b>Matt</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/commits?author=matt-b8" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/matipos2"><img src="https://avatars.githubusercontent.com/u/143452309?v=4?s=100" width="100px;" alt="matipos2"/><br /><sub><b>matipos2</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/commits?author=matipos2" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/lry12138"><img src="https://avatars.githubusercontent.com/u/17554717?v=4?s=100" width="100px;" alt="lry12138"/><br /><sub><b>lry12138</b></sub></a><br /><a href="#translation-lry12138" title="Translation">🌍</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/mjasperse"><img src="https://avatars.githubusercontent.com/u/146605?v=4?s=100" width="100px;" alt="Martijn Jasperse"/><br /><sub><b>Martijn Jasperse</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/commits?author=mjasperse" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>