add go fiber example

go-fiber-simple/cmd/api/routes.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"net/http"
+
+	"github.com/julienschmidt/httprouter"
+)
+
+func (app *application) routes() *httprouter.Router {
+	router := httprouter.New()
+
+	// Define the available routes
+	router.HandlerFunc(http.MethodGet, "/v1/healthcheck", app.healthcheckHandler)
+
+	return router
+}