diff --git a/README.md b/README.md
index 5728dc2..5fcd9f9 100644
--- a/README.md
+++ b/README.md
@@ -243,7 +243,7 @@ def detect_video():
     # Return annotated video or frame-by-frame results
 ```
 
-## � **Technical Questions Summary**
+## **Technical Questions Summary**
 
 The project successfully addresses all required technical questions:
 
@@ -253,7 +253,7 @@ The project successfully addresses all required technical questions:
 
 All technical decisions are implemented and validated in the working system.
 
-## �🔧 Installation & Setup
+## Installation & Setup
 
 ### Prerequisites
 - Python 3.8+
diff --git a/training/.DS_Store b/training/.DS_Store
index dec92ca..f279437 100644
Binary files a/training/.DS_Store and b/training/.DS_Store differ