[9.0] Updating text_similarity_reranker documentation (#127004)#127016

elasticsearchmachine merged 1 commit intoelastic:9.0elastic/elasticsearch:9.0from

Samiul-TheSoccerFan:backport/9.0/pr-127004Samiul-TheSoccerFan/elasticsearch:backport/9.0/pr-127004Copy head branch name to clipboard