chore: update contributors

Author: vasco-santos

package.json

@@ -47,5 +47,9 @@
     "dirty-chai": "^2.0.1",
     "ipfs": "^0.28.2",
     "ipfsd-ctl": "^0.36.0"
-  }
+  },
+  "contributors": [
+    "Vasco Santos <[email protected]>",
+    "Vasco Santos <[email protected]>"
+  ]
 }