docs: add rafael-sepeda as a contributor for design, blog (#244)

Author: allcontributors[bot]

.all-contributorsrc

@@ -103,6 +103,16 @@
         "doc",
         "review"
       ]
+    },
+    {
+      "login": "rafael-sepeda",
+      "name": "rafael-sepeda",
+      "avatar_url": "https://avatars.githubusercontent.com/u/13061805?v=4",
+      "profile": "https://github.com/rafael-sepeda",
+      "contributions": [
+        "design",
+        "blog"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -50,6 +50,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   <tr>
     <td align="center"><a href="https://github.com/lloydaf"><img src="https://avatars.githubusercontent.com/u/5729666?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Lloyd Francis</b></sub></a><br /><a href="https://github.com/freenowtech/wave/commits?author=lloydaf" title="Documentation">📖</a> <a href="https://github.com/freenowtech/wave/commits?author=lloydaf" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/JanHamara"><img src="https://avatars.githubusercontent.com/u/14894844?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jan Hamara</b></sub></a><br /><a href="https://github.com/freenowtech/wave/commits?author=JanHamara" title="Code">💻</a> <a href="https://github.com/freenowtech/wave/commits?author=JanHamara" title="Documentation">📖</a> <a href="https://github.com/freenowtech/wave/pulls?q=is%3Apr+reviewed-by%3AJanHamara" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="https://github.com/rafael-sepeda"><img src="https://avatars.githubusercontent.com/u/13061805?v=4?s=100" width="100px;" alt=""/><br /><sub><b>rafael-sepeda</b></sub></a><br /><a href="#design-rafael-sepeda" title="Design">🎨</a> <a href="#blog-rafael-sepeda" title="Blogposts">📝</a></td>
   </tr>
 </table>