Updated Mastodon for author Oscar Toledo

author/Oscar_Toledo.json

@@ -8,10 +8,10 @@
     "email" : null,
     "url" : "https://nanochess.org/",
     "alt_url" : null,
-    "deprecated_twitter_handle" : null,
-    "mastodon" : null,
-    "mastodon_url" : null,
-    "github" : null,
+    "deprecated_twitter_handle" : "@nanochess",
+    "mastodon" : "@nanochess@mastodon.social",
+    "mastodon_url" : "https://mastodon.social/@nanochess",
+    "github" : "@nanochess",
     "affiliation" : null,
     "winning_entry_set" : [
         {