Update index.md

Author: nerlab

research/index.md

@@ -2,10 +2,10 @@
 title: Publications
 nav:
   order: 2
-  tooltip: Published works
+  tooltip: Published Works
 ---
 
-# {% include icon.html icon="fa-solid fa-microscope" %}Research
+# {% include icon.html icon="fa-solid fa-book-open" %}Publication
 
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