Update app.py

app.py

@@ -189,6 +189,7 @@ async def index():
     	<div class="input-container">
 		<input type="text" class="keyword-input" id="keywordInput" placeholder="Search" oninput="filterContent(true)">
 		<div class="clear-btn" id="clearBtn" onclick="clearFilter()">&times;</div>
+        <img src="static/info.png" alt="info" width="18" height="18" align="center" onclick="showSearchInfo()" style="cursor: pointer;">
 		</div>
       '''