docs: fix typo in AI Engineer roadmap tokens URL (#9855)

Author: joaolucassilva

src/data/roadmaps/ai-engineer/content/tokens@2WbVpRLqwi3Oeqk1JPui4.md

@@ -5,4 +5,4 @@ Tokens are fundamental units of text that LLMs process, created by breaking text
 Visit the following resources to learn more:
 
 - [@article@Explaining Tokens — the Language and Currency of AI](https://blogs.nvidia.com/blog/ai-tokens-explained/)
-- [@article@Understanding Tokens and Parameters in Model Training: A Deep Dive](ttps://www.functionize.com/blog/understanding-tokens-and-parameters-in-model-training)
+- [@article@Understanding Tokens and Parameters in Model Training: A Deep Dive](https://www.functionize.com/blog/understanding-tokens-and-parameters-in-model-training)