Update README.md

Author: richardwilkes

README.md

@@ -35,7 +35,7 @@ use standard library code, the package has been named the same as the standard l
 
 - **`geom`** - Generic geometric primitives including `Point[T]`, `Rect[T]`, `Size[T]`, `Line[T]`, `Matrix[T]`, and `Insets[T]` with type conversion utilities.
 
-- **`geom/poly`** - Provides polygon operations using fixed-point arithmetic for reliable geometric computations.
+- **`geom/poly`** - Provides polygon operations.
 
 - **`geom/visibility`** - 2D visibility polygon computation for line-of-sight calculations.