Add some more doc comments

Author: fwcd

Sources/StaticMap/MapAnnotation.swift

@@ -4,11 +4,16 @@ import Utils
 
 /// A marker to be drawn on a static map.
 public indirect enum MapAnnotation {
+    /// A circle of the given radius.
     case circle(coords: Coordinates, radius: Double)
+    /// A pin marker.
     case pin(coords: Coordinates)
 
+    /// A modifier attaching the given label.
     case label(annotation: MapAnnotation, text: String, padding: Double)
+    /// A modifier setting the font size.
     case fontSize(annotation: MapAnnotation, size: Double)
+    /// A modifier setting the color.
     case color(annotation: MapAnnotation, color: Color)
 
     /// The center coordinates of the marked location.

Sources/StaticMap/StaticMap.swift

@@ -24,8 +24,10 @@ public struct StaticMap {
     ///   - padding: The padding on the x and y axis in pixels
     ///   - zoom: The zoom level
     ///   - center: The center of the map as a geographical location
+    ///   - span: The span of the map region to display
     ///   - tileProvider: The OpenStreetMap tile provider to use
     ///   - tileSize: The tile size in pixels
+    ///   - annotations: Annotations to render on top of the map
     public init(
         size: Vec2<Int> = .init(both: 300),
         padding: Vec2<Int> = .zero(),