Update README.md

Author: TimOliver

README.md

@@ -10,7 +10,7 @@
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-As part of the visual overhaul featured in iOS 13, `UISegmentedControl` was completely redesigned, featuring a much rounder, cleaner, and slightly more skeuomorphic appearance.
+As part of the visual improvements featured in iOS 13, `UISegmentedControl` was completely redesigned, featuring a much rounder, cleaner, and slightly more skeuomorphic appearance.
 
 `TOSegmentedControl` is a subclass of of `UIControl` that completely re-implements the look and feel of the new `UISegmentedControl` component, allowing developers to adopt its look even in previous versions of iOS they support.