Add Tito Griné to contributors list

Author: nene

CONTRIBUTING.md

@@ -57,6 +57,7 @@ For those who have admin access on the repo, the new release publish flow is as
 - Sean Song <mail@seansong.dev>
 - Sergei Egorov <sergei.egorov@zeroturnaround.com>
 - Steven Yung <stevenyung@fastmail.com>
+- Tito Griné <tgrine@singlestore.com>
 - Toliver <teejae@gmail.com>
 - Toni Müller <toni.mueller@datameer.com>
 - Tyler Jones <tyler.jones@txwormhole.com>

package.json

@@ -78,6 +78,7 @@
     "Sean Song <mail@seansong.dev>",
     "Sergei Egorov <sergei.egorov@zeroturnaround.com>",
     "Steven Yung <stevenyung@fastmail.com>",
+    "Tito Griné <tgrine@singlestore.com>",
     "Toliver <teejae@gmail.com>",
     "Toni Müller <toni.mueller@datameer.com>",
     "Tyler Jones <tyler.jones@txwormhole.com>",