more linting

docs/aframe-extra-collection.md

@@ -1,5 +1,5 @@
 # **Extras Collection**
-
+<hr>
 A collection of miscellaneous components with varying degrees of usefulness.
 
 **rounded**
@@ -21,8 +21,7 @@ Creates a flat 2D rectangle with rounded corners. The appearance can be modified
 |  width | _number_  |  1  | The width of the rectangle. |
 |  height | _number_  |  1  | The height of the rectangle. |
 
-**clamp**
----
+## **clamp**
 
 Restricts the movement of an object to a volume specified by minimum and maximum values in world space; Objects with the _clamp_ component cannot move beyond the limits defined by the min and max values.
 
@@ -39,8 +38,7 @@ Restricts the movement of an object to a volume specified by minimum and maximum
 |  min | _Vector3_  |  {x:-1,y:-1,z:-1}  | The minimum allowed world position by axis. |
 |  max | _Vector3_  |  {x:1,y:1,z:1}  | The maximum allowed world position by axis. |
 
-**log-object3D**
----
+## **log-object3D**
 
 Calls `console.log` after a mesh is loaded;
 
@@ -51,8 +49,7 @@ Calls `console.log` after a mesh is loaded;
 <!-- returns 'Object3D: { .. etc ... }'-->
 ```
 
- **billboard**
-----
+## **billboard**
 
 Aligns the Z-axis of an entity to always face towards a specified entity;