Update paper/paper.md

Co-authored-by: Madicken Munk <[email protected]>

paper/paper.md

@@ -69,7 +69,7 @@ contains all of the necessary cost and performance data for different technology
 classes. `osier` comes pre-loaded with a variety of technologies described in 
 the National Renewable Energy Laboratory's (NREL) Annual Technology Baseline (ATB)
 dataset[@nationalrenewableenergylaboratory:2023] but users are also able to
-define their own. In order to run `osier`, users are only required to supply an 
+define their own. In order to run `osier`, users are required to supply an 
 energy demand time series and a list of `osier.Technology` objects. Users can 
 optionally provide weather data to incorporate solar or wind energy.