Update content/docs/(guides)/instances.mdx

Co-authored-by: Simon <redwyre@users.noreply.github.com>

Author: VinyarionHyarmendacil

content/docs/(guides)/instances.mdx

@@ -23,7 +23,7 @@ Differentiate two concepts, "Instance Owner" and "Instance Master".
 The "Owner" of an instance is the creator of the instance, is permanent, and has permission to insta-kick users without having to go through the Voting system.
 The "Instance Master" is the Photon sync master and is responsible for object syncing. The Instance Master is whoever has stayed in the instance the longest.
 
-The presence of one of the arguments `friends`, hidden`, `private`, or `group` indicates that the instance has a canonical owner.
+The presence of one of the arguments `friends`, `hidden`, `private`, or `group` indicates that the instance has a canonical owner.
 The `group` argument indicates that an instance is a group instance.
 
 In particular: