add tip about how to remove site.path from site.url using helper

diff --git a/docs/modules/ROOT/pages/templates.adoc b/docs/modules/ROOT/pages/templates.adoc
index eb53e2d..3facf8b 100644 (file)
--- a/docs/modules/ROOT/pages/templates.adoc
+++ b/docs/modules/ROOT/pages/templates.adoc
@@ -42,7 +42,8 @@ s| [[site]]site
 
 | site.path
 | The pathname (i.e., subpath) of the site.url under which the site is hosted (e.g., /docs).
-Only set if site.url is defined.
+This value is empty if site.url is not defined, has no path segment, or matches /.
+Can be removed from the site.url value using a helper (e.g., `deleteSuffix site.url site.path`)
 (since Antora 2.1)
 
 | site.title