docs: add berteotti as a contributor for code (#280)

* docs: update README.md [skip ci]

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

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -254,6 +254,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "berteotti",
+      "name": "Leonardo Berteotti",
+      "avatar_url": "https://avatars.githubusercontent.com/u/23079677?v=4",
+      "profile": "https://github.com/berteotti",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -1,7 +1,7 @@
 # web3-ui
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-27-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-28-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 _In Development 🏗️_
@@ -105,6 +105,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/fjun99"><img src="https://avatars.githubusercontent.com/u/943418?v=4?s=100" width="100px;" alt=""/><br /><sub><b>fangjun</b></sub></a><br /><a href="https://github.com/Developer-DAO/web3-ui/commits?author=fjun99" title="Documentation">📖</a></td>
     <td align="center"><a href="http://jkrsp.com"><img src="https://avatars.githubusercontent.com/u/1188186?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Julian Krispel-Samsel</b></sub></a><br /><a href="https://github.com/Developer-DAO/web3-ui/commits?author=juliankrispel" title="Documentation">📖</a></td>
     <td align="center"><a href="https://bandism.net/"><img src="https://avatars.githubusercontent.com/u/22633385?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ikko Ashimine</b></sub></a><br /><a href="https://github.com/Developer-DAO/web3-ui/commits?author=eltociear" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/berteotti"><img src="https://avatars.githubusercontent.com/u/23079677?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Leonardo Berteotti</b></sub></a><br /><a href="https://github.com/Developer-DAO/web3-ui/commits?author=berteotti" title="Code">💻</a></td>
   </tr>
 </table>