Some quick documentation

lib/squib/api/image.rb

@@ -27,6 +27,7 @@ module Squib
     # @param y: the y-coordinate to place
     # @param width: the pixel width that the image should scale to. SVG scaling is done with vectors, so the scaling should be smooth. When set to `:native`, uses the DPI and units of the loaded SVG document.
     # @param height: the pixel width that the image should scale to. SVG scaling is done with vectors, so the scaling should be smooth. When set to `:native`, uses the DPI and units of the loaded SVG document.
+    # @return [nil]
     # @api public
     def svg(range: :all, file: nil, id: nil, x: 0, y: 0, width: :native, height: :native)
       range = rangeify(range)

lib/squib/api/units.rb

@@ -3,6 +3,7 @@ module Squib
 
     # Given inches, returns the number of pixels according to the deck's DPI.
     # 
+    # @example inches(2.5) # 750px for 300 dpi
     # @param [Decimal] n, the number of inches
     # @return [Decimal] the number of pixels, according to the deck's DPI
     # @api public