chore: readme docs

README.md

@@ -0,0 +1,36 @@
+# protofmt
+
+修改自 [https://github.com/emicklei/proto-contrib](https://github.com/emicklei/proto-contrib)
+
+## 使用
+
+```go
+package main
+
+import (
+	"bytes"
+	"os"
+
+	"github.com/emicklei/proto"
+	"gitter.top/common/protofmt"
+)
+
+func main()  {
+	def, err := os.ReadFile("testdata.proto")
+	if err != nil {
+		// do something
+    }
+	parser := proto.NewParser(bytes.NewReader(def))
+	parse, err := parser.Parse()
+	if err != nil {
+		// do something
+	}
+	var buf = new(bytes.Buffer)
+	protofmt.NewFormatter(buf, "    ").Format(parse)
+	err = os.WriteFile("testdata.proto", buf.Bytes(), os.ModePerm)
+	if err != nil {
+		// do something
+	}
+}
+
+```