docs: Edit Auto-configuration Example (#1169)

* docs: Edit Auto-configuration Example

* docs: Edit Azure Example

* docs: Edit Oracle Example

spring-ai-docs/src/main/antora/modules/ROOT/pages/api/vectordbs/azure.adoc

@@ -156,7 +156,7 @@ Add the documents to your vector store:
 
 [source,java]
 ----
-vectorStore.add(List.of(document));
+vectorStore.add(documents);
 ----
 
 And finally, retrieve documents similar to a query:

spring-ai-docs/src/main/antora/modules/ROOT/pages/api/vectordbs/oracle.adoc

@@ -88,7 +88,7 @@ List<Document> documents = List.of(
     new Document("You walk forward facing the past and you turn back toward the future.", Map.of("meta2", "meta2")));
 
 // Add the documents to Oracle Vector Store
-vectorStore.add(List.of(document));
+vectorStore.add(documents);
 
 // Retrieve documents similar to a query
 List<Document> results = vectorStore.similaritySearch(SearchRequest.query("Spring").withTopK(5));

spring-ai-docs/src/main/antora/modules/ROOT/pages/api/vectordbs/redis.adoc

@@ -93,7 +93,7 @@ List <Document> documents = List.of(
     new Document("You walk forward facing the past and you turn back toward the future.", Map.of("meta2", "meta2")));
 
 // Add the documents to Redis
-vectorStore.add(List.of(document));
+vectorStore.add(documents);
 
 // Retrieve documents similar to a query
 List<Document> results = vectorStore.similaritySearch(SearchRequest.query("Spring").withTopK(5));