Fix minor spelling error in docs
Summary: Closes
@@ -6,7 +6,7 @@ title: Mutations
Table of Contents:
- [`commitMutation`](#commitmutation)
- [Simple Example](#simple-example)
-- [Optimistic Updates](#optmistic-updates)
+- [Optimistic Updates](#optimistic-updates)
- [Updater Configs](#updater-configs)
- [Using updater and optimisticUpdater](#using-updater-and-optimisticupdater)
