Fix case sensitivity in README file path for consistency

update_profile.py

@@ -7,10 +7,10 @@ def generate_stats():
     return f"✅ My Gitea instance is alive and well!\n🕒 Last update: {now}."
 
 def main():
-    readme_path = "README.md"
+    readme_path = "README.MD"
     
     if not os.path.exists(readme_path):
-        print("README.md not found!")
+        print(f"{readme_path} not found!")
         return
 
     with open(readme_path, "r", encoding="utf-8") as f: