diff --git a/examples/defer/defer.go b/examples/defer/defer.go
index d8fa3b8..037bb53 100644
--- a/examples/defer/defer.go
+++ b/examples/defer/defer.go
@@ -14,3 +14,5 @@ func main() {
     defer second()
     first()
 }
+
+// todo: review http://blog.golang.org/2010/08/defer-panic-and-recover.html
diff --git a/examples/panic/panic.go b/examples/panic/panic.go
index 82b79f3..e39ae61 100644
--- a/examples/panic/panic.go
+++ b/examples/panic/panic.go
@@ -1,9 +1,11 @@
 // A `panic` means something went unexpectedly wrong.
 // Mostly we use it to fail fast on errors that
 // shouldn't occur during normal operation.
+
 package main
 
 func main() {
+
     // We'll use panic throught this book to check for
     // unexpected errors. This is the only program in the
     // book designed to panic.