drm/docs: Fix todo.rst

I didnt' format the thing correctly :-(

Fixes: 39aead83 ("fbcon: Disable accelerated scrolling")
Reviewed-by: Simon Ser <contact@emersion.fr>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201118073637.597206-1-daniel.vetter@ffwll.ch

Documentation/gpu/todo.rst

@@ -297,9 +297,12 @@ Garbage collect fbdev scrolling acceleration
 
 Scroll acceleration is disabled in fbcon by hard-wiring p->scrollmode =
 SCROLL_REDRAW. There's a ton of code this will allow us to remove:
+
 - lots of code in fbcon.c
+
 - a bunch of the hooks in fbcon_ops, maybe the remaining hooks could be called
   directly instead of the function table (with a switch on p->rotate)
+
 - fb_copyarea is unused after this, and can be deleted from all drivers
 
 Note that not all acceleration code can be deleted, since clearing and cursor