Correct hyperlink

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/docs/3.0-migration-guide.md b/docs/3.0-migration-guide.md
index e91211a..0794aba 100644
--- a/docs/3.0-migration-guide.md
+++ b/docs/3.0-migration-guide.md
@@ -583,7 +583,7 @@
 
 ### Strengthen default algorithm selection for X.509
 
-This is described in the section [Strengthen default algorithm selection for X.509 and TLS](strengthen-default-algorithm-selection-for-x.509-and-tls).
+This is described in the section [Strengthen default algorithm selection for X.509 and TLS](#strengthen-default-algorithm-selection-for-x.509-and-tls).
 
 ### Remove wrapper for libpkcs11-helper