ResilientWatchCacheInitialization documentation

Author: wojtek-t

content/en/docs/reference/command-line-tools-reference/feature-gates/resilient-watch-cache-initialization.md

@@ -0,0 +1,15 @@
+---
+title: ResilientWatchCacheInitialization
+content_type: feature_gate
+
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: beta 
+    defaultValue: true
+    fromVersion: "1.31"
+
+---
+Enables resilient watchcache initialization to avoid controlplane overload.

content/en/docs/reference/command-line-tools-reference/feature-gates/watch-cache-initialization-post-start-hook.md

@@ -0,0 +1,15 @@
+---
+title: WatchCacheInitializationPostStartHook
+content_type: feature_gate
+
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: beta 
+    defaultValue: false
+    fromVersion: "1.31"
+
+---
+Enables post-start-hook for watchcache initialization to be part of readyz (with timeout).