tutorials: more blog fixes (#5657)

tutorials/code/blog/blog.v

@@ -15,26 +15,27 @@ fn main() {
 	vweb.run<App>(8081)
 }
 
-fn (mut app App) index_text() {
+/*
+fn (mut app App) index_text() vweb.Result {
 	app.vweb.text('Hello, world from vweb!')
+	return vweb.Result{}
 }
 
-/*
-fn (app &App) index_html() {
-	message := 'Hello, world from vweb!'
-	$vweb.html()
+fn (app &App) index_html() vweb.Result {
+	message := 'Hello, world from Vweb!'
+	return $vweb.html()
 }
 */
+
 fn (app &App) index() vweb.Result {
 	articles := app.find_all_articles()
 	return $vweb.html()
 }
 
 pub fn (mut app App) init_once() {
-	db := sqlite.connect(':memory:') or {
+	db := sqlite.connect('blog.db') or {
 		panic(err)
 	}
-	db.exec('create table `Article` (id integer primary key, title text default "", text text default "")')
 	app.db = db
 }
 
@@ -49,10 +50,10 @@ pub fn (mut app App) new_article() vweb.Result {
 	title := app.vweb.form['title']
 	text := app.vweb.form['text']
 	if title == '' || text == '' {
-		app.vweb.text('Empty text/titile')
+		app.vweb.text('Empty text/title')
 		return vweb.Result{}
 	}
-	article := Article{
+	article := Article {
 		title: title
 		text: text
 	}
@@ -60,7 +61,7 @@ pub fn (mut app App) new_article() vweb.Result {
 	sql app.db {
 		insert article into Article
 	}
-	return app.vweb.redirect('/article/')
+	return app.vweb.redirect('/')
 }
 
 pub fn (mut app App) articles() {