docs : correct typo from "opean" to "open" in azure-openai-chat.adoc

Author: cowboysj

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

@@ -66,7 +66,7 @@ This is because in OpenAI there is no `Deployment Name`, only a `Model Name`.
 
 NOTE: The property `spring.ai.azure.openai.chat.options.model` has been renamed to `spring.ai.azure.openai.chat.options.deployment-name`.
 
-NOTE: If you decide to connect to `OpenAI` instead of `Azure OpeanAI`, by setting the `spring.ai.azure.openai.openai-api-key=<Your OpenAI Key>` property, 
+NOTE: If you decide to connect to `OpenAI` instead of `Azure OpenAI`, by setting the `spring.ai.azure.openai.openai-api-key=<Your OpenAI Key>` property, 
 then the `spring.ai.azure.openai.chat.options.deployment-name` is treathed as an link:https://platform.openai.com/docs/models[OpenAI model] name.
 
 ==== Access the OpenAI Model