qtdragon -docs: fix an annoying warning about indent

As a bonus, I figure out how to get the line break where I wanted it.

Author: c-morley

docs/src/gui/qtdragon.adoc

@@ -454,11 +454,11 @@ These pins could be used with HALUI to built a more friendly control panel. +
 
 - It can report/change the current selected Axis button. +
 - The jog rate/increments will be reported. +
-- There is a cycle start and pause pin - these call the code in QtDragon rather then the motion controller.
-This allows custom behaviour, such as spindle lift to work with external buttons. +
-- If there are macros defined in the INI (see: <<sec:macro-buttons,Macro Buttons>>), there will be pins available to initiate them. 
-These macros can require the mode to be preset to MDI or to automatically switch from MANUAL to MDI mode by 
-setting preferences on the settings page. +
+- There is a cycle start and pause pin - these call the code in QtDragon rather then the motion controller.  +
+ This allows custom behaviour, such as spindle lift to work with external buttons.
+- If there are macros defined in the INI (see: <<sec:macro-buttons,Macro Buttons>>), there will be pins available to initiate them. +
+ These macros can require the mode to be preset to MDI or to automatically switch from MANUAL to MDI mode by 
+setting preferences on the settings page.
 - clear/reload the display
 - shutdown the screen
 - ok/cancel of dialogs and notify (error) messages