Update generative-ai-azure-overview.md

Fixing Typo in examples

Author: denzilribeiro

articles/postgresql/flexible-server/generative-ai-azure-overview.md

@@ -121,7 +121,7 @@ select azure_ai.set_setting('azure_openai.subscription_key', '<API Key>');
 
 ```postgresql
 select azure_ai.get_setting('azure_openai.endpoint');
-select azure_ai.get_setting('azure_openai. subscription_key');
+select azure_ai.get_setting('azure_openai.subscription_key');
 ```
 
 #### Check the Azure AI extension version