moves individual examples to pub mods to force building and have less dead_code

examples/server/src/keep_alive.rs

@@ -1,7 +1,7 @@
 // <keep-alive>
 use actix_web::{web, App, HttpResponse, HttpServer};
 
-fn main() {
+pub fn main() {
     HttpServer::new(|| {
         App::new().route("/", web::get().to(|| HttpResponse::Ok()))
     })

examples/server/src/keep_alive_tp.rs

@@ -1,7 +1,7 @@
 // <example>
 use actix_web::{http, HttpRequest, HttpResponse};
 
-fn index(req: HttpRequest) -> HttpResponse {
+pub fn index(req: HttpRequest) -> HttpResponse {
     HttpResponse::Ok()
         .connection_type(http::ConnectionType::Close) // <- Close connection
         .force_close() // <- Alternative method

examples/server/src/main.rs

@@ -1,8 +1,8 @@
-// mod keep_alive;
-// mod keep_alive_tp;
-mod signals;
-mod ssl;
-mod workers;
+// pub mod keep_alive;
+// pub mod keep_alive_tp;
+pub mod signals;
+pub mod ssl;
+pub mod workers;
 
 // <main>
 use actix_web::{web, App, HttpResponse, HttpServer};