Add watcher.get_settings and watcher.update_settings (#3397)

(cherry picked from commit f31d8cf)

Author: lcawl

docs/overlays/elasticsearch-openapi-overlays.yaml

@@ -519,4 +519,25 @@ actions:
             application/json:
               examples:
                 delegatePkiResponseExample1:
-                  $ref: "../../specification/security/delegate_pki/examples/200_response/SecurityDelegatePkiResponseExample1.yaml"
+                  $ref: "../../specification/security/delegate_pki/examples/200_response/SecurityDelegatePkiResponseExample1.yaml"
+## Examples for watcher
+  - target: "$.paths['/_watcher/settings']['put']"
+    description: "Add request example for update watcher settings"
+    update:
+      requestBody: 
+        content: 
+          application/json: 
+            examples:
+              updateWatcherSettingsRequestExample1: 
+                $ref: "../../specification/watcher/update_settings/examples/request/WatcherUpdateSettingsRequestExample1.yaml"
+  - target: "$.paths['/_watcher/settings']['get']"
+    description: "Add response example for get watcher settings"
+    update:
+      responses:
+        200:
+          content: 
+            application/json: 
+              examples:
+                updateWatcherSettingsRequestExample1: 
+                  $ref: "../../specification/watcher/get_settings/examples/200_response/WatcherGetSettingsResponseExample1.yaml"
+