Updates http2 chapter after testing.

examples/Cargo.toml

@@ -24,7 +24,7 @@ exclude = [
   "middleware",
   "static-files",
   "websockets",
-  "http20",
+  "http2",
   "databases",
   "og_databases",
   "sentry",

examples/http2/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "http20"
+name = "http2"
 version = "0.1.0"
 edition = "2018"
 

examples/http2/src/main.rs

@@ -8,6 +8,8 @@ fn index(_req: HttpRequest) -> impl Responder {
 
 fn main() {
     // load ssl keys
+    // to create a self-signed temporary cert for testing:
+    // `openssl req -x509 -newkey rsa:4096 -nodes -keyout key.pem -out cert.pem -days 365 -subj '/CN=localhost'`
     let mut builder = SslAcceptor::mozilla_intermediate(SslMethod::tls()).unwrap();
     builder
         .set_private_key_file("key.pem", SslFiletype::PEM)
@@ -16,6 +18,8 @@ fn main() {
 
     HttpServer::new(|| App::new().route("/", web::get().to(index)))
         .bind_ssl("127.0.0.1:8088", builder)
+        .unwrap()
+        .run()
         .unwrap();
 }
 // </main>