adding image headers

JOSS_paper/paper.md

@@ -60,7 +60,10 @@ For a particular crop, the theoretical energy potential can be calculated as fol
 - The tool offers the ability to download all the data outputs in the form of NetCDF4 files.
 - The tool also produces several interactive graphs which can be used to compare the energy potentials at a glance. The figures below illustrate them for selected geographies across the world.
 
+For New Zealand : 
 ![Energy Potential from Total Land from New Zealand](NewZealand.png)
+
+For Nigeria :
 ![Energy Potential from Total Land from Nigeria](Nigeria.png)
 
 - The tool also allows for flexibility incase someone wants to change the RPR,LHV and SAF values to suit the region of their choice.