chore(doc): implement remainder of documentation

src/routes/onboard/mod.rs

@@ -1,8 +1,9 @@
 use rocket::Route;
+use rocket_okapi::okapi::openapi3::OpenApi;
 
 mod complete;
 mod hello;
 
-pub fn routes() -> Vec<Route> {
-    routes![hello::req, complete::req]
+pub fn routes() -> (Vec<Route>, OpenApi) {
+    openapi_get_routes_spec![hello::req, complete::req]
 }