now generate the title randomly

.gitignore

@@ -1,3 +1,6 @@
 /target
 **/*.rs.bk
 Cargo.lock
+
+# Enviroment variables
+.env

src/main.rs

@@ -1,3 +1,31 @@
-fn main() {
-    println!("Hello, world!");
+#![feature(proc_macro_hygiene, decl_macro)]
+
+#[macro_use]
+extern crate rocket;
+extern crate rand;
+extern crate rocket_contrib;
+
+use rand::Rng;
+use rocket_contrib::serve::StaticFiles;
+use rocket_contrib::templates::Template;
+use std::collections::HashMap;
+
+const TITLES: [&str; 4] = ["/* {} */", "# {}", "// {}", "<!-- {} -->"];
+
+#[get("/")]
+fn index() -> Template {
+    let mut rng = rand::thread_rng();
+    let mut context = HashMap::new();
+    let title_fmt = TITLES[rng.gen_range(0, TITLES.len())];
+    let title = str::replace(title_fmt, "{}", "CódigoComentado");
+    context.insert("title", title);
+    Template::render("index", context)
+}
+
+fn main() {
+    rocket::ignite()
+        .attach(Template::fairing())
+        .mount("/", routes![index])
+        .mount("/static", StaticFiles::from("static"))
+        .launch();
 }