Explain formatting verb in paige.link.url

README.md

@@ -294,7 +294,9 @@ commit_url = "" # Example is "https://github.com/willfaught/paige/commit/%s"
 [paige.link] # A link placed at the top of the footer for pages with files
 content = "" # Example is "Edit this page"
 disable = false
-url = "" # Example is "https://github.com/willfaught/paige/edit/master/content/%s"
+url = ""
+# The formatting verb "%s" is replaced with the path to the file relative to the content directory.
+# Example is "https://github.com/willfaught/paige/edit/master/content/%s".
 
 [paige.menu]
 style = "pills" # Must be "links", "pills", "tabs", or "underline"