chore: sync files (autowarefoundation#90)

Signed-off-by: GitHub <noreply@github.com>

Signed-off-by: GitHub <noreply@github.com>
Co-authored-by: kenji-miyake <kenji-miyake@users.noreply.github.com>

Author: awf-autoware-bot[bot]

.github/PULL_REQUEST_TEMPLATE/standard-change.md

@@ -4,7 +4,7 @@
 
 ## Related links
 
-<!-- Write the links related to this PR. -->
+<!-- Write the links related to this PR. Private links should be clearly marked as private, for example, '[FOO COMPANY INTERNAL LINK](https://example.com)'. -->
 
 ## Tests performed