Add More Examples & Categorized in Folders & TOC

Former-commit-id: ce4d711a75a4ba08ffab075e6baa88724725885b

_examples/examples/beginner/send-files/main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"gopkg.in/kataras/iris.v6"
+	"gopkg.in/kataras/iris.v6/adaptors/httprouter"
+)
+
+func main() {
+	app := iris.New()
+	// output startup banner and error logs on os.Stdout
+	app.Adapt(iris.DevLogger())
+	// set the router, you can choose gorillamux too
+	app.Adapt(httprouter.New())
+
+	app.Get("/servezip", func(c *iris.Context) {
+		file := "./files/first.zip"
+		c.SendFile(file, "c.zip")
+	})
+
+	app.Listen(":8080")
+}