docs(config/templates): consistent default values (renovatebot#26467)

docs/usage/configuration-templates.md

@@ -32,7 +32,7 @@ Be careful, and consider creating a new "config help" post at the [discussions t
 Renovate uses one commit per branch.
 The `commitMessage` reflects the contents of the branch and is usually the same as the PR title.
 
-`commitMessage` has a default value of `{{commitMessagePrefix}} {{commitMessageAction}} {{commitMessageTopic}} {{commitMessageExtra}} {{commitMessageSuffix}}`, with the intention that you only edit some of those subcomponents.
+`commitMessage` has a default value of `{{{commitMessagePrefix}}} {{{commitMessageAction}}} {{{commitMessageTopic}}} {{{commitMessageExtra}}} {{{commitMessageSuffix}}}`, with the intention that you only edit some of those subcomponents.
 
 You usually don't need to edit `commitMessagePrefix`, this option is used by Renovate if it needs to add a prefix to conform to the Semantic Commit convention.
 Avoid editing the commit message, unless you know what you're doing.