9.18.13 ARM formatting errors

(Quote from a non-customer email to the ISC support team)

I find two errore on Bv9ARM.

The first is:

$ diff -cr zones.inc.rst_orig zones.inc.rst
*** zones.inc.rst_orig  2023-03-06 17:04:58.759796386 +0800
--- zones.inc.rst       2023-03-18 09:55:18.865163982 +0800
***************
*** 460,465 ****
--- 460,466 ----
  is equivalent to:

  ::
+
     HOST-0000.EXAMPLE.   A      1.2.3.1
     HOST-0001.EXAMPLE.   A      1.2.3.2
     HOST-0002.EXAMPLE.   A      1.2.3.3

the second is at the page 233 of the pdf version,

8.2.33 zone Block Grammar,

in the line after zone, Grammar:

there are two zone keywords in this line,

zone zone <string> [ <class> ] {