Update tutorial-introduction.mdx

Fix typo "criteira" to "criteria"

docs/tutorials/tutorial-introduction.mdx

@@ -49,7 +49,7 @@ We'll be going through a few use cases in this tutorial including:
 - Medical chatbot
 - RAG QA Agent
 
-Your use case might not be either one, and your evaluation criteira for each could be different, but that's OK. The concept is the same for all use cases - you pick a criteria, you use the metrics `deepeval` offers based on your criteria, and you iterate based on the results of these evaluations.
+Your use case might not be either one, and your evaluation criteria for each could be different, but that's OK. The concept is the same for all use cases - you pick a criteria, you use the metrics `deepeval` offers based on your criteria, and you iterate based on the results of these evaluations.
 
 ## Who Is This Tutorial For?