Update api.md

Fixed example URL for the viewing higher resolution mjpeg stream.

docs/docs/usage/api.md

@@ -22,7 +22,7 @@ Accepts the following query string parameters:
 | `motion`    | int  | Draw blue boxes for areas with detected motion (0 or 1)            |
 | `regions`   | int  | Draw green boxes for areas where object detection was run (0 or 1) |
 
-You can access a higher resolution mjpeg stream by appending `h=height-in-pixels` to the endpoint. For example `http://localhost:5000/back?h=1080`. You can also increase the FPS by appending `fps=frame-rate` to the URL such as `http://localhost:5000/back?fps=10` or both with `?fps=10&h=1000`.
+You can access a higher resolution mjpeg stream by appending `h=height-in-pixels` to the endpoint. For example `http://localhost:5000/api/back?h=1080`. You can also increase the FPS by appending `fps=frame-rate` to the URL such as `http://localhost:5000/api/back?fps=10` or both with `?fps=10&h=1000`.
 
 ### `/api/<camera_name>/<object_name>/best.jpg[?h=300&crop=1]`