docs: add abelsiqueira as a contributor for code, and review (#66)

* docs: update README.md

* docs: update docs/src/index.md

* docs: update .all-contributorsrc

---------

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

.all-contributorsrc

@@ -28,6 +28,16 @@
       "contributions": [
         "ideas"
       ]
+    },
+    {
+      "login": "abelsiqueira",
+      "name": "Abel Soares Siqueira",
+      "avatar_url": "https://avatars.githubusercontent.com/u/1068752?v=4",
+      "profile": "https://abelsiqueira.com",
+      "contributions": [
+        "code",
+        "review"
+      ]
     }
   ]
 }

README.md

@@ -33,6 +33,7 @@ If you want to make contributions of any kind, please first that a look into our
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/greg-neustroev"><img src="https://avatars.githubusercontent.com/u/32451432?v=4?s=100" width="100px;" alt="Greg Neustroev"/><br /><sub><b>Greg Neustroev</b></sub></a><br /><a href="#code-greg-neustroev" title="Code">💻</a> <a href="#doc-greg-neustroev" title="Documentation">📖</a> <a href="#maintenance-greg-neustroev" title="Maintenance">🚧</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/g-moralesespana"><img src="https://avatars.githubusercontent.com/u/42405171?v=4?s=100" width="100px;" alt="Germán Morales"/><br /><sub><b>Germán Morales</b></sub></a><br /><a href="#ideas-g-moralesespana" title="Ideas, Planning, & Feedback">🤔</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://abelsiqueira.com"><img src="https://avatars.githubusercontent.com/u/1068752?v=4?s=100" width="100px;" alt="Abel Soares Siqueira"/><br /><sub><b>Abel Soares Siqueira</b></sub></a><br /><a href="#code-abelsiqueira" title="Code">💻</a> <a href="#review-abelsiqueira" title="Reviewed Pull Requests">👀</a></td>
     </tr>
   </tbody>
 </table>

docs/src/index.md

@@ -20,6 +20,7 @@ Documentation for [TulipaClustering](https://github.com/TulipaEnergy/TulipaClust
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/greg-neustroev"><img src="https://avatars.githubusercontent.com/u/32451432?v=4?s=100" width="100px;" alt="Greg Neustroev"/><br /><sub><b>Greg Neustroev</b></sub></a><br /><a href="#code-greg-neustroev" title="Code">💻</a> <a href="#doc-greg-neustroev" title="Documentation">📖</a> <a href="#maintenance-greg-neustroev" title="Maintenance">🚧</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/g-moralesespana"><img src="https://avatars.githubusercontent.com/u/42405171?v=4?s=100" width="100px;" alt="Germán Morales"/><br /><sub><b>Germán Morales</b></sub></a><br /><a href="#ideas-g-moralesespana" title="Ideas, Planning, & Feedback">🤔</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://abelsiqueira.com"><img src="https://avatars.githubusercontent.com/u/1068752?v=4?s=100" width="100px;" alt="Abel Soares Siqueira"/><br /><sub><b>Abel Soares Siqueira</b></sub></a><br /><a href="#code-abelsiqueira" title="Code">💻</a> <a href="#review-abelsiqueira" title="Reviewed Pull Requests">👀</a></td>
     </tr>
   </tbody>
 </table>