Update Sassal link

Author: minimalsm

.all-contributorsrc

@@ -1521,7 +1521,7 @@
       "login": "sassal",
       "name": "sassal",
       "avatar_url": "https://avatars0.githubusercontent.com/u/9276959?v=4",
-      "profile": "https//twitter.com/sassal0x",
+      "profile": "https://twitter.com/sassal0x",
       "contributions": [
         "content"
       ]

README.md

@@ -402,7 +402,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://etherworld.co"><img src="https://avatars0.githubusercontent.com/u/29681685?v=4?s=100" width="100px;" alt="Pooja Ranjan"/><br /><sub><b>Pooja Ranjan</b></sub></a><br /><a href="#content-poojaranjan" title="Content">🖋</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https//twitter.com/sassal0x"><img src="https://avatars0.githubusercontent.com/u/9276959?v=4?s=100" width="100px;" alt="sassal"/><br /><sub><b>sassal</b></sub></a><br /><a href="#content-sassal" title="Content">🖋</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://twitter.com/sassal0x"><img src="https://avatars0.githubusercontent.com/u/9276959?v=4?s=100" width="100px;" alt="sassal"/><br /><sub><b>sassal</b></sub></a><br /><a href="#content-sassal" title="Content">🖋</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://zaremba.ch"><img src="https://avatars0.githubusercontent.com/u/811701?v=4?s=100" width="100px;" alt="Robert Zaremba"/><br /><sub><b>Robert Zaremba</b></sub></a><br /><a href="#content-robert-zaremba" title="Content">🖋</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/tasdienes"><img src="https://avatars1.githubusercontent.com/u/18563486?v=4?s=100" width="100px;" alt="Tas"/><br /><sub><b>Tas</b></sub></a><br /><a href="#ideas-tasdienes" title="Ideas, Planning, & Feedback">🤔</a> <a href="#content-tasdienes" title="Content">🖋</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/s-pace"><img src="https://avatars2.githubusercontent.com/u/32097720?v=4?s=100" width="100px;" alt="Sylvain Pace"/><br /><sub><b>Sylvain Pace</b></sub></a><br /><a href="https://github.com/ethereum/ethereum-org-website/commits?author=s-pace" title="Code">💻</a></td>