minor fix

app.py

@@ -134,11 +134,11 @@ def main():
         align_matrix, cost_matrix, loss, similarity_matrix = aligner.compute_alignment_matrixes(s1_vec, s2_vec)
         print(align_matrix.shape, cost_matrix.shape)
         
-        st.write(f"**word alignment matrix** (loss: :blue[{loss}])")
+        st.write(f"**Word alignment matrix** (loss: :blue[{loss}])")
         fig = plot_align_matrix_heatmap_plotly(align_matrix.T, sent1, sent2, threshhold, cost_matrix.T)
         st.plotly_chart(fig, use_container_width=True)
 
-        st.write(f"**word similarity matrix**")
+        st.write(f"**Word similarity matrix**")
         fig2 = plot_similarity_matrix_heatmap_plotly(similarity_matrix.T, sent1, sent2, cost_matrix.T)
         st.plotly_chart(fig2, use_container_width=True)