docs: add batiskafff as a contributor (codesandbox#2002)

* docs: update README.md

* docs: update .all-contributorsrc

Author: allcontributors[bot]

.all-contributorsrc

@@ -1252,6 +1252,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "batiskafff",
+      "name": "Yehor",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/1769092?v=4",
+      "profile": "https://github.com/batiskafff",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "repoType": "github",