Update README.md

Author: her3ticAVI

README.md

@@ -36,7 +36,7 @@ In this course we will cover different emerging attack vectors that exist on AI.
 
 🥼 [03.2-AILB - Training a network traffic classification system](./labs/03.2-AILB.md)
 
-📒 [03.3-AIOV - Preventing Data Poisoning](./labs/03.3-AILB.md)
+📒 [03.3-AIOV - Preventing Data Poisoning](./labs/03.3-AIOV.md)
 
 📒 [04-AIOV - Model Inversion Attack](./labs/04-AIOV.md)