Fix to resolve issue #26.

The solution isn't good. It misses F(0).
The output must be :

0
1
1
2
…

and you have :

1
1
2
3
…

Author: dupoxy

solutions/fib.go

@@ -11,7 +11,7 @@ import "fmt"
 // fibonacci is a function that returns
 // a function that returns an int.
 func fibonacci() func() int {
-	f, g := 0, 1
+	f, g := 1, 0
 	return func() int {
 		f, g = g, f+g
 		return f