added eror text

similarity_page.py

@@ -352,3 +352,10 @@ def show_single_matching_page():
 
             show_single_table(selected_project_index, projects_df, top_projects_df)
 
+        else:
+            st.write("-----")
+            col1, col2, col3 = st.columns([1, 1, 1])
+            with col2:
+                st.write("  ")
+                st.markdown("<span style='color: red'>You have to chose a project first, before you see results!!</span>", unsafe_allow_html=True)
+