doc: fix capitalization in PG 12 release notes

Reported-by: Thomas Munro
Discussion: https://postgr.es/m/CA+hUKGJpep8uSXoDtVF6iROCRKce-39HEhDPUaYFyMn0U5e9ug@mail.gmail.com

diff --git a/doc/src/sgml/release-12.sgml b/doc/src/sgml/release-12.sgml
index 8bffb0ae0316f872ffe049635d32e7a01ae9f4b0..977dc53f3e4189d58652c3627d14b4ee492afc2a 100644 (file)
--- a/doc/src/sgml/release-12.sgml
+++ b/doc/src/sgml/release-12.sgml
@@ -527,7 +527,7 @@ Author: Thomas Munro <tmunro@postgresql.org>
 -->
 
 <para>
-Allow parallel query when in SERIALIZABLE ISOLATION MODE (Thomas Munro)
+Allow parallel query when in SERIALIZABLE isolation mode (Thomas Munro)
 </para>
 
 <para>