Heterogeneous Preferences for Use and Non-use Values Provided by Insects

Updated release to change images and tidy up the repo a little more

DruidD2

Stable release for the paper: Heterogeneous Preferences for Use and Non-use Values Provided by Insects forthcoming at People and Nature authored by Peter King, Tom D. Breeze, Theresa Robinson, Martin Dallimer on the NERC-funded DRUID project.