update README

README.md

@@ -1,3 +1,22 @@
-# ddd-sample-in-golang
+# DDD sample
 
-ddd sample
+
+### cargo
+
+DDD sample with OO
+
+## counting shapes
+
+DDD sample with FP
+
+![](shapes.png)
+
+### counting triangles
+How many triangles can you see?
+24, details as follows:
+[abc abd abe acd ace ade aef aeg aeh afg afh agh ahi ahj ahk aij aik ajk beh ceg def ehk fhj ghi]
+
+### counting quadrangles
+How many quadrangles can you see?
+18, details as follows:
+[aceh adeg adeh afhk aghj aghk bcgh bcih bdfh bdjh bekh cdfg cdji ceki dekj efjk egik fgij]

counting-shapes/domain/service/counting_shapes.go

@@ -3,6 +3,7 @@ package service
 import (
     "github.com/agiledragon/ddd-sample-in-golang/counting-shapes/domain/model"
    // "fmt"
+    "fmt"
 )
 
 func CountingTriangles(points model.Points, lines []model.Line) []model.Points {
@@ -13,7 +14,7 @@ func CountingTriangles(points model.Points, lines []model.Line) []model.Points {
             matches = append(matches, set)
         }
     }
-    //fmt.Println("matches:", matches)
+    fmt.Println("matches:", matches)
     return matches
 }