updated description for all tabs

app.py

@@ -135,7 +135,7 @@ if selected == "App":
             st.markdown(
                     'Here you can extract the nearest neighbours to a chosen lemma. \
                     Please select one or more time slices and the preferred number of nearest neighbours. \
-                    Only type in Greek, with correct spirits and accents.'
+                    **Only type in Greek, with correct spirits and accents**.'
                 )
             target_word = st.multiselect("Enter a word", options=all_models_words, max_selections=1)
             if len(target_word) > 0:
@@ -207,7 +207,7 @@ if selected == "App":
                     'Here you can extract the cosine similarity between two lemmas. \
                     Please select a time slice for each lemma. \
                     You can also calculate the cosine similarity between two vectors of the same lemma in different time slices. \
-                    Only type in Greek, with correct spirits and accents.'
+                    **Only type in Greek, with correct spirits and accents**. '
                 )
             col1, col2 = st.columns(2)
             col3, col4 = st.columns(2)
@@ -244,7 +244,7 @@ if selected == "App":
         st.markdown("## 3D graph")
         st.markdown('''
                     Here you can generate a 3D representation of the semantic space surrounding a target lemma. Please choose the lemma and the time slice.\
-                    Only type in Greek, with correct spirits and accents. \
+                    **Only type in Greek, with correct spirits and accents**.  \
                     
                     
                     **NB**: the 3D representations are reductions of the multi-dimensional representations created by the models. \
@@ -289,7 +289,7 @@ if selected == "App":
         
         with st.container():
             st.markdown('## Dictionary')
-            st.markdown('Search a word in the Liddell-Scott-Jones dictionary. Only type in Greek, with correct spirits and accents. ')
+            st.markdown('Search a word in the Liddell-Scott-Jones dictionary. **Only type in Greek, with correct spirits and accents**. ')
 
 
             all_lemmas = load_all_lemmas()