Update _data/ambassadors.yml

Author: bishabosha

_data/ambassadors.yml

@@ -163,7 +163,7 @@
   mastodon: https://functional.cafe/@NicolasRinaudo
 
 - name: Rikito Taniguchi
-  description: Scala compiler and tooling engineer, Scala events organizer in Japan, and a stuff of <a href="https://scalamatsuri.org/en">ScalaMatsuri</a>.
+  description: Scala compiler and tooling engineer, Scala events organizer in Japan, and staff of <a href="https://scalamatsuri.org/en">ScalaMatsuri</a>.
   image: https://github.com/tanishiking.png
   city: Osaka, Japan
   discord: tanishiking