docs/devel/tcg-ops: fix missing newlines in "Host vector operations"

This unintentionally causes the mov_vec, ld_vec and st_vec operations
to appear on the same line.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230823141740.35974-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

docs/devel/tcg-ops.rst

@@ -718,7 +718,9 @@ E.g. VECL = 1 -> 64 << 1 -> v128, and VECE = 2 -> 1 << 2 -> i32.
 .. list-table::
 
    * - mov_vec *v0*, *v1*
+
        ld_vec *v0*, *t1*
+
        st_vec *v0*, *t1*
 
      - | Move, load and store.