Add More Examples & Categorized in Folders & TOC

Former-commit-id: ce4d711a75a4ba08ffab075e6baa88724725885b

_examples/examples/beginner/favicon/main.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"gopkg.in/kataras/iris.v6"
+	"gopkg.in/kataras/iris.v6/adaptors/httprouter"
+)
+
+func main() {
+	app := iris.New()
+	app.Adapt(httprouter.New())
+	// This will serve the ./static/favicons/iris_favicon_32_32.ico to: localhost:8080/favicon.ico
+	app.Favicon("./static/favicons/iris_favicon_32_32.ico")
+
+	// app.Favicon("./static/favicons/iris_favicon_32_32.ico", "/favicon_32_32.ico")
+	// This will serve the ./static/favicons/iris_favicon_32_32.ico to: localhost:8080/favicon_32_32.ico
+
+	app.Get("/", func(ctx *iris.Context) {
+		ctx.HTML(iris.StatusOK, `You should see the favicon now at the side of your browser,
+      if not, please refresh or clear the browser's cache.`)
+	})
+
+	app.Listen(":8080")
+}