Get rid of the API suffix

Author: tzolov

spring-ai-docs/src/main/antora/modules/ROOT/nav.adoc

@@ -4,8 +4,8 @@
 * xref:api/chatclient.adoc[]
 ** xref:api/advisors.adoc[Advisors]
 * xref:api/index.adoc[AI Models]
-** xref:api/prompt.adoc[]
-** xref:api/chatmodel.adoc[]
+** xref:api/chatmodel.adoc[Chat Models]
+*** xref:api/prompt.adoc[]
 *** xref:api/bedrock-chat.adoc[Amazon Bedrock]
 **** xref:api/chat/bedrock/bedrock-anthropic3.adoc[Anthropic3]
 **** xref:api/chat/bedrock/bedrock-anthropic.adoc[Anthropic2]
@@ -38,7 +38,7 @@
 *** xref:api/chat/zhipuai-chat.adoc[ZhiPu AI]
 // **** xref:api/chat/functions/zhipuai-chat-functions.adoc[Function Calling]
 *** xref:api/chat/watsonx-ai-chat.adoc[watsonx.AI]
-** xref:api/embeddings.adoc[]
+** xref:api/embeddings.adoc[Embedding Models]
 *** xref:api/bedrock.adoc[Amazon Bedrock]
 **** xref:api/embeddings/bedrock-cohere-embedding.adoc[Cohere]
 **** xref:api/embeddings/bedrock-titan-embedding.adoc[Titan]
@@ -57,19 +57,19 @@
 **** xref:api/embeddings/vertexai-embeddings-palm2.adoc[PaLM2 Embedding]
 *** xref:api/embeddings/watsonx-ai-embeddings.adoc[watsonx.AI]
 *** xref:api/embeddings/zhipuai-embeddings.adoc[ZhiPu AI]
-** xref:api/imageclient.adoc[]
+** xref:api/imageclient.adoc[Image Models]
 *** xref:api/image/azure-openai-image.adoc[Azure OpenAI]
 *** xref:api/image/openai-image.adoc[OpenAI]
 *** xref:api/image/stabilityai-image.adoc[Stability]
 *** xref:api/image/zhipuai-image.adoc[ZhiPuAI]
 *** xref:api/image/qianfan-image.adoc[QianFan]
-** xref:api/audio[Audio Model API]
+** xref:api/audio[Audio Models]
 *** xref:api/audio/transcriptions.adoc[]
 **** xref:api/audio/transcriptions/azure-openai-transcriptions.adoc[Azure OpenAI]
 **** xref:api/audio/transcriptions/openai-transcriptions.adoc[OpenAI]
 *** xref:api/audio/speech.adoc[]
 **** xref:api/audio/speech/openai-speech.adoc[OpenAI]
-** xref:api/moderation[Moderation Model API]
+** xref:api/moderation[Moderation Models]
 *** xref:api/moderation/openai-moderation.adoc[OpenAI]
 // ** xref:api/generic-model.adoc[]