Adds ECS guide to doc links service (#102246)

docs/development/core/public/kibana-plugin-core-public.doclinksstart.links.md

@@ -201,5 +201,8 @@ readonly links: {
             upgradeElasticAgent: string;
             upgradeElasticAgent712lower: string;
         }>;
+        readonly ecs: {
+            readonly guide: string;
+        };
     };
 ```

src/core/public/doc_links/doc_links_service.ts

@@ -418,6 +418,9 @@ export class DocLinksService {
           upgradeElasticAgent: `${FLEET_DOCS}upgrade-elastic-agent.html`,
           upgradeElasticAgent712lower: `${FLEET_DOCS}upgrade-elastic-agent.html#upgrade-7.12-lower`,
         },
+        ecs: {
+          guide: `${ELASTIC_WEBSITE_URL}guide/en/ecs/current/index.html`,
+        },
       },
     });
   }
@@ -621,5 +624,8 @@ export interface DocLinksStart {
       upgradeElasticAgent: string;
       upgradeElasticAgent712lower: string;
     }>;
+    readonly ecs: {
+      readonly guide: string;
+    };
   };
 }

src/core/public/public.api.md

@@ -680,6 +680,9 @@ export interface DocLinksStart {
             upgradeElasticAgent: string;
             upgradeElasticAgent712lower: string;
         }>;
+        readonly ecs: {
+            readonly guide: string;
+        };
     };
 }