fix broken link, update package-lock.json

Author: trusktr

guide/cameras/README.md

@@ -39,23 +39,26 @@ A perspective camera is very similar to a camera in the real world: it has a
 view angle such that more things in the world are visible further away from the
 camera.
 
-In the following example, a `<lume-perspective-camera>` element is placed into
+In the following example, a [`<lume-perspective-camera>`](../../api/cameras/PerspectiveCamera) element is placed into
 the scene, and we can control several aspects of the camera like the field of
 view (fov), position, and rotation.
 
 All cameras start "inactive". When a manually-created camera is not `active`
 (i.e. it does not have an `active` attribute, or the attribute is set to
 `active="false"`, or the `.active` property is set to `false`), then the scene
 will use its internal default camera (see
-[`Scene#camera`](../api/core/Scene#camera) for info on the default camera). Once
+[`Scene#camera`](../../api/core/Scene#camera) for info on the default camera). Once
 the perspective camera is active then the view will be displayed through the
 lense of that camera, and we can manipulate that camera to control our view.
 
+See the [`PerspectiveCamera`](../../api/cameras/PerspectiveCamera) class for details on all of its
+attributes and properties.
+
 <live-code id="cameraExample"></live-code>
 
 # Camera Rig
 
-The [`<lume-camera-rig>`](../api/cameras/CameraRig) element is similar to a
+The [`<lume-camera-rig>`](../../api/cameras/CameraRig) element is similar to a
 real-life camera rig that holds a camera making it easy to move the camera in space using controls for rotating
 the camera around or moving the camera closer or further to or from a focus point.
 
@@ -69,5 +72,5 @@ local origin, and scroll or pinch with fingers to zoom:
   rigExample.content = cameraRigExample
 </script>
 
-See the [`CameraRig`](../api/cameras/CameraRig) class for details on all of its
+See the [`CameraRig`](../../api/cameras/CameraRig) class for details on all of its
 attributes and properties.