Fix typos in documentation (#191)

Author: AndreiVidrasco

Documentation/Available-Snapshot-Strategies.md

@@ -233,7 +233,7 @@ Records:
 
 A snapshot strategy for comparing images based on pixel equality.
 
-**Format:** `UIImage`
+**Format:** `NSImage`
 
 #### Parameters:
 
@@ -275,10 +275,6 @@ A snapshot strategy for comparing layers based on pixel equality.
 
     A view size override.
 
-  - `traits: UITraitCollection = .init()`
-
-    A trait collection override.
-
 #### Example:
 
 ``` swift
@@ -293,12 +289,6 @@ assertSnapshot(
   matching: view,
   as: .image(size: .init(width: 44, height: 44))
 )
-
-// Render with a horizontally-compact size class.
-assertSnapshot(
-  matching: view,
-  as: .image(traits: .init(horizontalSizeClass: .regular))
-)
 ```
 
 ### `.recursiveDescription`