更新readme

.gitignore

@@ -1,6 +1,7 @@
 # Binaries for programs and plugins
 *.exe
 *.exe~
+*swp
 *.dll
 *.so
 *.dylib

list/README.md

@@ -1,3 +1,41 @@
+## list
+list 是双向循环链表结构，具备较好的性能
+
+## quick start
+```go
+import (
+    "fmt"
+    "unsafe"
+
+    "github.com/antlabs/stl/list"
+)
+
+type worker struct {
+    list.Head //内嵌到业务结构体里面
+    ID        int
+}
+
+func main() {
+    workerHead := worker{} //声明
+    workerHead.Init()      //初始化
+
+    n1 := worker{ID: 1}
+    n2 := worker{ID: 2}
+
+    workerHead.AddTail(&n1.Head) //添加到尾部
+    workerHead.AddTail(&n2.Head) //天骄到尾部
+
+    offset := unsafe.Offsetof(workerHead.Head)
+    //遍历
+    workerHead.ForEach(func(pos *list.Head) {
+
+        worker := (*worker)(pos.Entry(offset))
+
+        fmt.Printf("worker id:%d\n", worker.ID)
+    })
+}
+
+```
 
 ## 性能对比
 性能领先go标准库1倍