added some filter descriptions

similarity_page.py

@@ -141,7 +141,7 @@ def show_multi_matching_page():
     st.session_state.crs5_option_disabled = True
     col1, col2, col3 = st.columns([5, 1, 5])
     with col1:
-        st.write("Sector Filter (required)")
+        st.subheader("Sector Filter (required)")
         st.caption("""
                     Sector filters must be applied to see results. The CRS5 and CRS3 classifications organise development aid into categories, 
                     with the 5-digit level providing more specific detail within the broader 3-digit categories. 
@@ -184,18 +184,19 @@ def show_multi_matching_page():
         query = st.text_input("Search Query")
     
     with col3:
-        st.write("Additional Filters")
+        st.subheader("Additional Filters")
         st.caption("""
                     The additional filters allow for a more detailed search for the Multi-Project Matching.
-                
-            
                 """)
+        
+        st.caption(" ")
+        st.caption(" ")
 
         # COUNTRY SELECTION
         country_option = st.multiselect(
                 'Country / Countries',
                 COUNTRY_OPTION_LIST,
-                placeholder="All"
+                placeholder="All countries selected"
                 )
             
         # ORGA SELECTION
@@ -206,7 +207,7 @@ def show_multi_matching_page():
         orga_option = st.multiselect(
                 'Development Bank / Organization',
                 orga_list,
-                placeholder="All"
+                placeholder="All organizations selected"
                 )
         
         different_orga_checkbox = st.checkbox("Only matches between different organizations")