fix page navigation and update start page

Author: gwildingmz

pages/app.py

@@ -8,5 +8,5 @@
 distance_page = st.Page("calculate_distance.py", title="Calculate distance")
 
 
-pg = st.navigation([help_page, PE_page, distance_page])
+pg = st.navigation([help_page, PE_page, menzies_page, distance_page])
 pg.run()

pages/get_started.py

@@ -18,9 +18,15 @@
 st.image("ColumnNames.png")
 
 st.subheader("Step 3", divider=True)
-st.markdown('''This applies to the **Sage downloads** sheet only.
+st.markdown('''The follow steps apply to the **Sage downloads** sheet only.
 
 Remove the extra rows at the top of the sheet, so that the table columns is the first bit of data read by the calculator.''')
 st.image("SageTableHeadersBefore.png", caption="Before")
 st.write("Please leave the first row of the sheet empty, as shown below.")
-st.image("SageTableHeadersAfter.png", caption="After")
+st.image("SageTableHeadersAfter.png", caption="After")
+
+st.subheader("Step 4", divider=True)
+st.write("Merge the hotel/accomodation tables with the travel table (the one you just removed the headers for).")
+st.image("SageTablesSeparate.png", caption="Before")
+st.write("Remove the totals and header, so that the sheet becomes a single table.")
+st.image("SageTablesMerged.png", caption="After")