update attribution

contents/6-attributions.mdx

@@ -672,6 +672,7 @@ slug: "attributions"
   name="Liu Qizhen"
   role="Student"
   brief="
+    - Executive Leader
     - Analysis
     - Conceptualization
     - Background Research
@@ -685,6 +686,9 @@ slug: "attributions"
 />
 
 <Collapse title="Tasks Specification">
+  ### Executive Leader
+  Led the team in the final period of the project, coordinating the work of various departments and ensuring the project was completed on time.
+
   ### Analysis
   Conducted drug screening and analyzed the results.