docs: Escape hash character in asciidoc file

Asciidoctor gets confused otherwise when generating docbook.

diff --git a/doc/NEWS.adoc b/doc/NEWS.adoc
index 119ad11932ff71124c9df3d530a0ef2cf39e841a..1bd8cfc6a3805efeddb8251d8ca228c74736e2e0 100644 (file)
--- a/doc/NEWS.adoc
+++ b/doc/NEWS.adoc
@@ -138,7 +138,7 @@ Release date: 2025-09-14
   headers from incorrect locations. +
   [small]#_[contributed by Joel Rosdahl]_#
 
-- Documented that `#pragma once` can be problematic with precompiler headers
+- Documented that `\#pragma once` can be problematic with precompiler headers
   (PCH). +
   [small]#_[contributed by Joel Rosdahl]_#