change button descriptions

app.py

@@ -68,11 +68,11 @@ year_opts = sorted(df["year"].dropna().unique())
 
 w_countries = pn.widgets.MultiSelect(name="Countries", options=country_opts)
 w_years = pn.widgets.MultiSelect(name="Years", options=year_opts)
-w_keyword = pn.widgets.TextInput(name="Keyword Search", placeholder="Search questions or answers")
+w_keyword = pn.widgets.TextInput(name="Keyword Search", placeholder="Search questions or answers with exact string matching")
 w_group = pn.widgets.Checkbox(name="Group by Question Text", value=False)
 
-w_semquery = pn.widgets.TextInput(name="Semantic Query")
-w_search_button = pn.widgets.Button(name="Semantic Search", button_type="primary")
+w_semquery = pn.widgets.TextInput(name="Semantic Query", placeholder="LLM-powered semantic search")
+w_search_button = pn.widgets.Button(name="Search", button_type="primary")
 w_clear_filters = pn.widgets.Button(name="Clear Filters", button_type="warning")
 
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