[ci skip] Add a note about routes.php not being a filter
diff --git a/user_guide_src/source/general/routing.rst b/user_guide_src/source/general/routing.rst
index 45950fc..c039370 100644
--- a/user_guide_src/source/general/routing.rst
+++ b/user_guide_src/source/general/routing.rst
@@ -47,11 +47,16 @@
You can match literal values or you can use two wildcard types:
**(:num)** will match a segment containing only numbers.
- **(:any)** will match a segment containing any character.
+**(:any)** will match a segment containing any character.
.. note:: Routes will run in the order they are defined. Higher routes
will always take precedence over lower ones.
+.. note:: Route rules are not filters! Setting a rule of e.g.
+ 'foo/bar/(:num)' will not prevent controller *Foo* and method
+ *bar* to be called with a non-numeric value if that is a valid
+ route.
+
Examples
========