chore: update contributors

Author: dignifiedquire

package.json

@@ -89,6 +89,7 @@
     "Richard Littauer <richard.littauer@gmail.com>",
     "Stephen Whitmore <stephen.whitmore@gmail.com>",
     "Travis Person <travis.person@gmail.com>",
+    "Victor Bjelkholm <victorbjelkholm@gmail.com>",
     "Victor Bjelkholm <victor@typeform.com>",
     "ethers <ethereum@outlook.com>",
     "greenkeeperio-bot <support@greenkeeper.io>",
@@ -102,4 +103,4 @@
     "url": "https://github.com/ipfs/js-ipfs-api/issues"
   },
   "homepage": "https://github.com/ipfs/js-ipfs-api"
-}
+}