family_tree typo

[lambda.git] / index.mdwn

diff --git a/index.mdwn b/index.mdwn
index 877ff47..c10667b 100644 (file)
--- a/index.mdwn
+++ b/index.mdwn
@@ -138,6 +138,7 @@ other.
 
 [[Using the programming languages]]
 
+[[Family tree of functional programming languages]]
 
 ## Recommended Books ##