feat: Add caption for '-1' labelled tweets

app.py

@@ -6,7 +6,7 @@ import streamlit as st
 import tweepy
 import hdbscan
 
-from bokeh.models import ColumnDataSource, HoverTool
+from bokeh.models import ColumnDataSource, HoverTool, Label
 from bokeh.palettes import Cividis256 as Pallete
 from bokeh.plotting import Figure, figure
 from bokeh.transform import factor_cmap
@@ -62,6 +62,11 @@ def draw_interactive_scatter_plot(
     # p.xgrid.grid_line_color = None
     # p.ygrid.grid_line_color = None
     p.toolbar.logo = None
+    
+    disclaimer = Label(x=xs.min(), y=ys.min(), x_units="screen", y_units="screen",
+                   text_font_size="11px", text_color="silver",
+                   text="Topic equals -1 means no topic was detected for such tweet")
+    p.add_layout(disclaimer, "below")
     return p
 
 # Up to here
@@ -82,7 +87,7 @@ def generate_plot(
     with st.spinner("Now trying to express them with my own words... 💬"):
         embeddings_2d = get_tsne_embeddings(embeddings)
     plot = draw_interactive_scatter_plot(
-        tws, embeddings_2d[:, 0], embeddings_2d[:, 1], encoded_labels, encoded_labels, 'Tweet', 'Topic (-1 = None)'
+        tws, embeddings_2d[:, 0], embeddings_2d[:, 1], encoded_labels, encoded_labels, 'Tweet', 'Topic'
     )
     return plot