(AzureCXP) fixes MicrosoftDocs/azure-ai-docs#419698

Updated line no: 17
From: note 
To: not

Modified the sentence to an understandable format by correcting a word.

Author: TPavanBalaji

articles/ai-services/openai/concepts/prompt-engineering.md

@@ -14,7 +14,7 @@ recommendations: false
 
 # Prompt engineering techniques
 
-GPT-3, GPT-3.5, GPT-4, and GPT-4o models from OpenAI are prompt-based. With prompt-based models, the user interacts with the model by entering a text prompt, to which the model responds with a text completion. This completion is the model’s continuation of the input text. These techniques are note recommended for o-series models.
+GPT-3, GPT-3.5, GPT-4, and GPT-4o models from OpenAI are prompt-based. With prompt-based models, the user interacts with the model by entering a text prompt, to which the model responds with a text completion. This completion is the model’s continuation of the input text. These techniques are not recommended for o-series models.
 
 While these models are extremely powerful, their behavior is also very sensitive to the prompt. This makes prompt construction an important skill to develop.