Update joystick.md - fix up broken link to PX4 docs

docs/en/qgc-user-guide/setup_view/joystick.md

@@ -18,7 +18,7 @@ The joystick is _enabled_ as the last step of the calibration process.
 
 ## Enabling PX4 Joystick Support
 
-To enable Joystick support in PX4 you need to set the parameter [`COM_RC_IN_MODE`](h[ttp://localhost:8080/px4_user_guide/en](https://docs.px4.io/en/main/advanced_config/parameter_reference.html#COM_RC_IN_MODE) to `1` - _Joystick_.
+To enable Joystick support in PX4 you need to set the parameter [`COM_RC_IN_MODE`](https://docs.px4.io/en/main/advanced_config/parameter_reference.html#COM_RC_IN_MODE) to `1` - _Joystick_.
 If this parameter is `0` then _Joystick_ will not be offered as a setup option.
 
 This is enabled by default for PX4 SITL builds (see the [Parameters](../setup_view/parameters.md) topic for information on how to find and set a particular parameter).