LibWeb: Add a few extra spec links to CanvasGradient

Userland/Libraries/LibWeb/HTML/CanvasGradient.cpp

@@ -25,12 +25,14 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<CanvasGradient>> CanvasGradient::create_rad
     return realm.heap().allocate<CanvasGradient>(realm, realm, *radial_gradient);
 }
 
+// https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createlineargradient
 JS::NonnullGCPtr<CanvasGradient> CanvasGradient::create_linear(JS::Realm& realm, double x0, double y0, double x1, double y1)
 {
     auto linear_gradient = Gfx::CanvasLinearGradientPaintStyle::create(Gfx::FloatPoint { x0, y0 }, Gfx::FloatPoint { x1, y1 });
     return realm.heap().allocate<CanvasGradient>(realm, realm, *linear_gradient);
 }
 
+// https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createconicgradient
 JS::NonnullGCPtr<CanvasGradient> CanvasGradient::create_conic(JS::Realm& realm, double start_angle, double x, double y)
 {
     auto conic_gradient = Gfx::CanvasConicGradientPaintStyle::create(Gfx::FloatPoint { x, y }, start_angle);