week11 tweaks

Signed-off-by: Jim Pryor <profjim@jimpryor.net>

diff --git a/week11.mdwn b/week11.mdwn
index b48dd5f..357711a 100644 (file)
--- a/week11.mdwn
+++ b/week11.mdwn
@@ -499,10 +499,10 @@ It's possible to build cooperative threads without using those tools, however. S
            return loop (next1(tree1), next2(tree2))
        end
        
-       > return same_fringe ( {leaf=1}, {leaf=2})
+       > return same_fringe ( {leaf=1}, {leaf=2} )
        false
        
-       > return same_fringe ( {leaf=1}, {leaf=1})
+       > return same_fringe ( {leaf=1}, {leaf=1} )
        true
        
        > return same_fringe ( {left = {leaf=1}, right = {left = {leaf=2}, right = {leaf=3}}},