add update script

README.md

@@ -1 +1,38 @@
 # swagfs
+
+## Swagger-UI
+
+Update dist files in `files/dist/*`
+
+```bash
+./swagger-ui-dist.sh 4.15.5
+```
+
+## Example
+
+Use `echo`
+
+```golang
+package main
+
+import (
+	"log"
+
+	"github.com/a-kataev/swagfs"
+	"github.com/labstack/echo/v4"
+)
+
+func main() {
+	e := echo.New()
+
+	cfg := &swagfs.Config{}
+	cfg.AddURL("https://petstore.swagger.io/v2/swagger.json", "petstore")
+	cfg.SetLayout("StandaloneLayout")
+
+	e.StaticFS("/*", swagfs.FS(cfg))
+
+	if err := e.Start("127.0.0.1:8080"); err != nil {
+		log.Fatal(err)
+	}
+}
+```

swagger-ui-dist.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+version=${1:-4.15.5}
+
+set -x
+
+curl -Ls -o swagger-ui.zip "https://github.com/swagger-api/swagger-ui/archive/refs/tags/v${version}.zip"
+
+unzip -o swagger-ui.zip "swagger-ui-${version}/dist/*.*" -d tmp
+
+rm "tmp/swagger-ui-${version}/dist/swagger-initializer.js"
+
+cp -rf "tmp/swagger-ui-${version}/dist" files/
+
+rm -rf tmp swagger-ui.zip