diff --git a/README.md b/README.md
index 54fcac8..f92e064 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,9 @@
 ### Matrix Layer Stack
 stack of same sized matrices with heterogeneous types
 
+## Goal
+represent and access a 2d grid of heterogeneous type easily
+
 ## Usage Design 
 
 ```c++