Fix minor broken doc links and add missing feature flag

[clux]

minor things when browsing runtime with just doc. fairly insignificant.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.7%. Comparing base (c89a419) to head (1c66d64).

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #1471   +/-   ##
=====================================
  Coverage   74.7%   74.7%           
=====================================
  Files         79      79           
  Lines       6868    6868           
=====================================
  Hits        5125    5125           
  Misses      1743    1743           

Files	Coverage Δ
kube-runtime/src/reflector/mod.rs	100.0% <ø> (ø)
kube-runtime/src/reflector/store.rs	99.2% <ø> (ø)
kube-runtime/src/scheduler.rs	97.1% <ø> (ø)
kube-runtime/src/utils/watch_ext.rs	21.1% <ø> (ø)

[mateiidavid]

Nice!

A quick TIOLI:

noticed we don't say anything about sharing events in the reflector() docs. I added a small paragraph towards the end. Posting the patch in case it's helpful.

diff --git a/kube-runtime/src/reflector/mod.rs b/kube-runtime/src/reflector/mod.rs
index 2c6048ba..da7da986 100644
--- a/kube-runtime/src/reflector/mod.rs
+++ b/kube-runtime/src/reflector/mod.rs
@@ -98,6 +98,21 @@ pub use store::{store, Store};
 /// Additionally, only `labels`, `annotations` and `managed_fields` are safe to drop from `ObjectMeta`.
 ///
 /// For more information check out: <https://kube.rs/controllers/optimization/> for graphs and techniques.
+///
+/// ## Stream sharing
+///
+/// `reflector()` as an interface may optionally create a stream that can be
+/// shared with other components to help with resource usage.
+///
+/// To share a stream, the `Writer<K>` consumed by `reflector()` must be
+/// created through an interface that allows a store to be subscribed on, such
+/// as [`store_shared()`]. When the store supports being subscribed on, it will
+/// broadcast an event to all active listeners after caching any object
+/// contained in the event.
+/// 
+/// Creating subscribers requires an
+/// [`unstable`](https://github.com/kube-rs/kube/blob/main/kube-runtime/Cargo.toml#L17-L21)
+/// feature
 pub fn reflector<K, W>(mut writer: store::Writer<K>, stream: W) -> impl Stream<Item = W::Item>
 where
     K: Lookup + Clone,

[mateiidavid]

LGTM! Left a small tioli note on adding docs about sharing streams for reflector().