Update samples/ui-kit-place-details-compact/index.html

Co-authored-by: Chris J. Shull <chrisjshull@gmail.com>

Author: ejhaselden

samples/ui-kit-place-details-compact/index.html

@@ -31,7 +31,7 @@
         The gmp-place-details-compact element is styled inline because it is
         conditionally rendered and moved into the info window, which is
         part of the map's shadow DOM.
-    -->
+        -->
         <!--[START maps_ui_kit_place_details_map_compact_setup] -->
         <gmp-place-details-compact
             orientation="horizontal"