Add flet1, flet, update reference
diff --git a/src/lisp/test-flet.lisp b/src/lisp/test-flet.lisp
new file mode 100644
index 0000000..c8c64f2
--- /dev/null
+++ b/src/lisp/test-flet.lisp
@@ -0,0 +1,5 @@
+(defun main ()
+  (flet
+      '((a () 123)
+        (b () 456))
+    (print (funcall b))))