Typo in README.md

Fixes a typo in README.md

Author: kamronbatman

README.md

@@ -55,7 +55,7 @@ npm install nuclear-js
 
 ## Performance
 
-Getters are only calculated whenever their dependencies change. So if the dependency is a keypath then it will only recalculate when that path in the app state map has changed (which can be done as a simple `state.getIn(keyPath) !== oldState.getIn(keyPath)` which is an `O(log32(n))` operation. The other case is when a getter is dependent on other getters. Since every getter is a pure function, NuclearJS will only recompute the getter if the values if its dependencies change.
+Getters are only calculated whenever their dependencies change. So if the dependency is a keypath then it will only recalculate when that path in the app state map has changed (which can be done as a simple `state.getIn(keyPath) !== oldState.getIn(keyPath)` which is an `O(log32(n))` operation. The other case is when a getter is dependent on other getters. Since every getter is a pure function, NuclearJS will only recompute the getter if the values of its dependencies change.
 
 ## API Documentation