chore(doc): implement remainder of documentation

src/routes/push/mod.rs

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