add GerardoAllende as a contributor for research (#1146)

* update README.md [skip ci]

* update .all-contributorsrc [skip ci]

---------

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

.all-contributorsrc

@@ -625,7 +625,8 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/8699267?v=4",
       "profile": "https://github.com/GerardoAllende",
       "contributions": [
-        "code"
+        "code",
+        "research"
       ]
     },
     {

README.md

@@ -202,7 +202,7 @@ 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/Jmillan-Dev"><img src="https://avatars.githubusercontent.com/u/39383390?v=4?s=100" width="100px;" alt="Josué Millán Zamora"/><br /><sub><b>Josué Millán Zamora</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/commits?author=Jmillan-Dev" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/me-suzy"><img src="https://avatars.githubusercontent.com/u/2770489?v=4?s=100" width="100px;" alt="me-suzy"/><br /><sub><b>me-suzy</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/issues?q=author%3Ame-suzy" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/dmail00"><img src="https://avatars.githubusercontent.com/u/79044603?v=4?s=100" width="100px;" alt="dmail00"/><br /><sub><b>dmail00</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/issues?q=author%3Admail00" title="Bug reports">🐛</a> <a href="https://github.com/py-pdf/fpdf2/commits?author=dmail00" title="Code">💻</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/GerardoAllende"><img src="https://avatars.githubusercontent.com/u/8699267?v=4?s=100" width="100px;" alt="Gerardo Allende"/><br /><sub><b>Gerardo Allende</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/commits?author=GerardoAllende" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/GerardoAllende"><img src="https://avatars.githubusercontent.com/u/8699267?v=4?s=100" width="100px;" alt="Gerardo Allende"/><br /><sub><b>Gerardo Allende</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/commits?author=GerardoAllende" title="Code">💻</a> <a href="#research-GerardoAllende" title="Research">🔬</a></td>
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://nicholasjin.github.io/"><img src="https://avatars.githubusercontent.com/u/15252734?v=4?s=100" width="100px;" alt="Nicholas Jin"/><br /><sub><b>Nicholas Jin</b></sub></a><br /><a href="https://github.com/py-pdf/fpdf2/issues?q=author%3Anicholasjin" title="Bug reports">🐛</a></td>