[ML] Add doc link for classification AUC ROC evaluation (#86660)

Author: lcawl

src/core/public/doc_links/doc_links_service.ts

@@ -147,6 +147,7 @@ export class DocLinksService {
           featureImportance: `${ELASTIC_WEBSITE_URL}guide/en/machine-learning/${DOC_LINK_VERSION}/ml-feature-importance.html`,
           outlierDetectionRoc: `${ELASTIC_WEBSITE_URL}guide/en/machine-learning/${DOC_LINK_VERSION}/ml-dfanalytics-evaluate.html#ml-dfanalytics-roc`,
           regressionEvaluation: `${ELASTIC_WEBSITE_URL}guide/en/machine-learning/${DOC_LINK_VERSION}/ml-dfanalytics-evaluate.html#ml-dfanalytics-regression-evaluation`,
+          classificationAucRoc: `${ELASTIC_WEBSITE_URL}guide/en/machine-learning/${DOC_LINK_VERSION}/ml-dfanalytics-evaluate.html#ml-dfanalytics-class-aucroc`,
         },
         transforms: {
           guide: `${ELASTIC_WEBSITE_URL}guide/en/elasticsearch/reference/${DOC_LINK_VERSION}/transforms.html`,