Update team-structure to s/android/ios for ios team (scribd#110)

The reach of the Android team is great, but not that broad

Author: joejcon1

_data/team-structure.yml

@@ -75,7 +75,7 @@
 - team: iOS
   description: |
     The iOS team's mission is to deliver a performant, stable and feature-rich
-    Android application.
+    iOS application.
 
 - team: Web Development
   description: |