add <a id=as-patterns>

diff --git a/rosetta1.mdwn b/rosetta1.mdwn
index 70866b1..5d3868a 100644 (file)
--- a/rosetta1.mdwn
+++ b/rosetta1.mdwn
@@ -517,6 +517,7 @@ Note there is no closing `end` or `}`. You can enclose the whole expression in p
       | 1 -> result1
       | x -> resultx
 
+<a id=as-patterns></a>
 The syntax for [[guards|topics/week1_kapulet_advanced#guards]] and [[as-patterns|topics/week1_kapulet_advanced#as-patterns]] also only varies slightly between these languages:
 
     # Kapulet