docs: added camera prop to renderer docs

docs/api/renderer.md

@@ -83,6 +83,7 @@ renderer.shadowMap.type: PCFSoftShadowMap
 | **clearColor**              | The color the renderer will use to clear the canvas.                                                                                                            | `#000000`          |
 | **windowSize**              | Whether to use the window size as the canvas size or the parent element.                                                                                        | `false`            |
 | **disableRender**           | Disable render on requestAnimationFrame, usefull for PostProcessing                                                                                             | `false`            |
+| **camera**                  | A manual camera to be used by the renderer.                                                                                                                     |                    |
 
 ## Defaults