update changelog

Author: kovirivong

src/aks-preview/HISTORY.rst

@@ -15,6 +15,7 @@ Pending
 * Add blue-green upgrade strategy support for AKS node pools:
   - `az aks nodepool add/update/upgrade`: Add `--upgrade-strategy` parameter to switch between rolling and blue-green nodepool upgrades. 
   - `az aks nodepool add/update/upgrade`: Add `--drain-batch-size`, `--drain-timeout-bg`, `--batch-soak-duration`, `--final-soak-duration` parameters to configure blue-green upgrade settings.
+* Add jwtauthenticator commands `az aks jwtauthenticator add/update/show/list/delete` to manage JWT authenticators for a managed cluster.
 
 18.0.0b38
 +++++++

src/aks-preview/azext_aks_preview/_help.py

@@ -4106,8 +4106,8 @@
           type: string
           short-summary: Path to JSON file containing the JWT authenticator configuration.
           long-summary: The JSON file should contain the properties schema for one JWT authenticator.
-                        For details on how to configure the properties of a JWT authenticator, please refer to the Kubernetes documentation: 
-                        https://kubernetes.io/docs/reference/access-authn-authz/authentication/#using-authentication-configuration. 
+                        For details on how to configure the properties of a JWT authenticator, please refer to the Kubernetes documentation 
+                         at https://kubernetes.io/docs/reference/access-authn-authz/authentication/#using-authentication-configuration. 
                         Please note that not all fields available in the Kubernetes documentation are supported by AKS. 
                         For troubleshooting, please see https://aka.ms/aks-external-issuers-docs."
         - name: --aks-custom-headers
@@ -4134,8 +4134,8 @@
           type: string
           short-summary: Path to JSON file containing the updated JWT authenticator configuration.
           long-summary: The JSON file should contain the properties schema for one JWT authenticator.
-                        For details on how to configure the properties of a JWT authenticator, please refer to the Kubernetes documentation: 
-                        https://kubernetes.io/docs/reference/access-authn-authz/authentication/#using-authentication-configuration. 
+                        For details on how to configure the properties of a JWT authenticator, please refer to the Kubernetes documentation 
+                        at https://kubernetes.io/docs/reference/access-authn-authz/authentication/#using-authentication-configuration. 
                         Please note that not all fields available in the Kubernetes documentation are supported by AKS. 
                         For troubleshooting, please see https://aka.ms/aks-external-issuers-docs."
         - name: --aks-custom-headers