Update map in Chapter 8 to include basemap (tmap)
Update map in Chapter 8 to include basemap (tmap)

modumont/spatial-microsim-book,majazaloznik/spatial-microsim-book,modumont/spatial-microsim-book,majazaloznik/spatial-microsim-book,Robinlovelace/spatial-microsim-book,Robinlovelace/spatial-microsim-book,richardellison/spatial-microsim-book,Robinlovelace/spatial-microsim-book,richardellison/spatial-microsim-book,modumont/spatial-microsim-book