doc: clarify that priorities applies to values

In the discussion on #40235 it
was mentioned that there might be confusion that some of the
items listed were technical priorities versus priorities
being for the values listed. Tweak to clarify.

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: #40318
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/guides/technical-values.md

@@ -1,4 +1,4 @@
-# Technical values and priorities
+# Technical values and their priorities
 
 The project uses these technical values to establish priorities and guide
 collaboration.