Update README.md

Author: mark-onyschuk

README.md

@@ -9,14 +9,24 @@ Geometry defines a `FrameReader` extension used to more easily gather geometry
 from a SwiftUI view hierarchy.
 
 ## `CoreGraphics` Extensions
-Geometry defines `CGVectorType` a protocol unifying the various 2D CoreGraphics
+GCGVectorExt defines `CGVectorType` a protocol unifying the various 2D CoreGraphics
 types including `CGPoint`, `CGSize`, and `CGVector`. The type provides support for
 easy conversion among types.
 
 The type also allows for a concise definition of standard operators for addition, 
 subtraction, multiplication, and division involving `CGVectorType` types.
 
-Finally, the package includes several extensions to `CGRect`:
+CGPathExt defines a function used to round corners on CGPaths. The function
+understands disjoint subpaths and offers several rounding styles including
+a `.strict` style which rounds to proper arcs, a `.natural` style which draws
+visually pleasant roundings, and an artistic `.freehand` style.
+
+```swift
+let star = CGPath.star(corners: 5, innerRadius: 50, outerRadius: 100)
+let rounded = star.rounded(10, style: .default) // default = .natural rounding
+```
+
+Finally, CGRectExt includes several extensions to `CGRect`:
 
 ```swift
 // fetch point at min X, mid Y