Update TODO.md

johncorderox · web-flow · commit 4360e46c30e9 · 2019-01-04T15:38:44.000-08:00
diff --git a/TODO.md b/TODO.md
@@ -3,4 +3,4 @@
 1. JWT
 2. Rack::Attack
 3. Caching. Memcache. Redis
-
+4. structs
