updated documentation to reflect folder structure

docs/aframe-oculus-hands.md

@@ -64,3 +64,64 @@ Gestures are stored as animation targets in the [prescribed hand model](./assets
 ### Alignments
 
 The presribed hand model includes a number of transforms which assist in aligning objects to different hand gestures when they are picked up. Which alignment a grabbed item aligns to may be configured with the ['grabbable' component](#grabbable).
+
+## **collider**
+
+<hr>
+
+A simple AABB collision detection system
+
+**Example**
+
+```html
+<a-entity collider="interval: 40; group: foo; collidesWith: bar; bounds: auto; size: 0 0 0;static: false; enabled: true; autoRefesh: false;"></a-entity>
+```
+
+**Properties**
+
+| Property | Property Type | Default Value |  Description  |
+|---|---|---|---|
+|  interval | _number_ |  40 | number of miliseconds between bounds updates & collision tests.  |
+|  group | _string_  |  'all'  | A group that this entity belongs to. Used to filter collisions. |
+|  collidesWith | _string_  |  'none'  | A group that this entity considers for collisions if autoRefresh is `true`. |
+|  bounds | _string_  |  'auto'  | How the boundaries of the AABB are computed. Can be one of `auto`,`proxy`,`box` or `mesh` |
+|  static | _booean_  |  true  | Whether or not to update the bounds and position on each interval |
+|  enabled | _booean_  |  true  | Whether this entity should be by other collider components. |
+|  autoRefresh | _booean_  |  false  | Whether or not this entity should check for intersections on each interval. |
+
+**Bounds**
+
+| Name |  Description  |
+|---|---|
+|  _auto_ | Requires a 3D model component. Creates a proxy object whose bounds are fit to the bounding volume of a _mesh_. The AABB is computed from the proxy object. |
+|  _proxy_ | Requires the `proxy` component. The AABB is computed from the proxy object. |
+|  _box_ | The AABB is computed from the `size` property, where the size represents the extents of `'size: width depth height;'` |
+|  _mesh_ | Requires a 3D model component. The AABB is computed from a mesh. |
+
+**Events**
+
+| Name |  Description  |
+|---|---|
+|  _hitstart_ | Emitted from both intersecting entities when their AABBs overlap. |
+|  _hitend_ | Emitted from both intersecting entities when their AABBs no longer overlap. |
+
+<hr>
+
+## **constraint**
+
+<hr>
+
+Attaches one entity to another using `THREE.Object3D.attach()`.
+
+**Example**
+
+```html
+<a-entity id="foo"></a-entity>
+<a-entity constraint="parent: #foo"></a-entity>
+```
+
+**Properties**
+
+| Property | Property Type | Default Value |  Description  |
+|---|---|---|---|
+|  parent | _selector_ |  `null` | Another entity to attach this one to. May not be the same entity.  |