chore: update contributors

Author: daviddias

package.json

@@ -90,6 +90,7 @@
     "Greenkeeper <support@greenkeeper.io>",
     "Pedro Teixeira <i@pgte.me>",
     "Richard Littauer <richard.littauer@gmail.com>",
+    "Richard Schneider <makaretu@gmail.com>",
     "Stephen Whitmore <stephen.whitmore@gmail.com>",
     "greenkeeper[bot] <greenkeeper[bot]@users.noreply.github.com>",
     "jbenet <juan@benet.ai>",