Update haddock formatting

I think I did this correctly...

Author: Ericson2314

src/Reflex/Class.hs

@@ -287,7 +287,7 @@ class ( MonadHold t (PushM t)
   -- 'Event' occurs
   switch :: Behavior t (Event t a) -> Event t a
   -- | Create an 'Event' that will occur whenever the input event is occurring -- and its occurrence value, another 'Event', is also occurring.
-  --   You maybe looking for 'switchHold' 'never' instead.
+  --   You maybe looking for '@switchHold@ @never@' instead.
   coincidence :: Event t (Event t a) -> Event t a
   -- | Extract the 'Behavior' of a 'Dynamic'.
   current :: Dynamic t a -> Behavior t a