Improve PR documentation

Author: co42

kube-runtime/src/controller/mod.rs

@@ -769,17 +769,16 @@ where
     /// # async {
     /// use futures::{StreamExt, TryStreamExt};
     /// use k8s_openapi::api::core::v1::{ConfigMap, Pod};
-    /// use kube::api::ListParams;
-    /// use kube::runtime::controller::Action;
-    /// use kube::runtime::reflector::ObjectRef;
-    /// use kube::runtime::{reflector, watcher, Controller, WatchStreamExt};
-    /// use kube::ResourceExt;
-    /// use kube::{Api, Client};
+    /// # use kube::api::{Api, ListParams};
+    /// # use kube::runtime::controller::Action;
+    /// # use kube::runtime::reflector::ObjectRef;
+    /// # use kube::runtime::{reflector, watcher, Controller, WatchStreamExt};
+    /// # use kube::{Client, ResourceExt};
     /// use std::convert::Infallible;
     /// use std::future;
     /// use std::sync::Arc;
     ///
-    /// // let client = Client::try_default().await.unwrap();
+    /// # let client: Client = todo!();
     ///
     /// // Store can be used in the reconciler instead of querying Kube
     /// let (pod_store, writer) = reflector::store();
@@ -793,14 +792,8 @@ where
     ///
     /// Controller::new(Api::<ConfigMap>::all(client), ListParams::default())
     ///     .reconcile_on(pod_stream)
-    ///     .run(
-    ///         |_obj, _pod_store| async move {
-    ///             // `pod_store` can be used there instead of querying Kubernetes
-    ///             Ok(Action::await_change())
-    ///         },
-    ///         |_object: Arc<ConfigMap>, err: &Infallible, _| Err(err).unwrap(),
-    ///         Arc::new(pod_store),
-    ///     )
+    ///     // The store can be re-used between controllers and even inspected from the reconciler through [Context]
+    ///     .run(reconcile, error_policy, Arc::new(pod_store))
     ///     .for_each(|_| future::ready(()))
     ///     .await;
     /// # };