updates readme

README.md

@@ -1,3 +1,35 @@
 # UI3
 
-A description of this package.
+3D UI lib for SwiftUI
+
+[Stacks](https://github.com/hexagons/UI3/blob/master/ui3_stacks.png?raw=true)
+
+~~~~swift
+import SwiftUI
+import UI3
+
+struct ContentView: View {
+    var body: some View {
+        ZStack {
+            Color.gray
+                .edgesIgnoringSafeArea(.all)
+            UI3 {
+                HStack {
+                    Box()
+                        .chamferRadius(0.05)
+                    VStack {
+                        Box()
+                            .chamferRadius(0.05)
+                        ZStack {
+                            Box()
+                                .chamferRadius(0.05)
+                            Box()
+                                .chamferRadius(0.05)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+~~~~