Update README.md

Lee Richmond · Lee Richmond · commit 90ac0643b1fb · 2016-12-28T09:02:37.000-05:00
diff --git a/README.md b/README.md
@@ -8,6 +8,7 @@ Written in [Typescript](https://www.typescriptlang.org) and distributed in ES5,
 
 ### Roadmap
 
+* Attribute transforms (type coercion)
 * Writes
 * Error / Validation handling
 * Nested Writes
