Add gen3sis (#1186)

Author: Ly0n

README.md

@@ -1524,6 +1524,7 @@ parameter values.
 - [ECOTOXr](https://github.com/pepijn-devries/ECOTOXr) - Provides access in R to ECOTOX, a comprehensive knowledgebase providing single chemical environmental toxicity data on aquatic and terrestrial species.
 - [moveHMM](https://github.com/TheoMichelot/moveHMM) - R package which implements hidden Markov models and associated tools (state decoding, model selection, model checking, etc.) tailored to animal movement modelling.
 - [BioDT](https://github.com/BioDT/biodt-shiny) - Prototype Digital Twins to help protect and restore biodiversity.
+- [gen3sis](https://github.com/project-gen3sis/R-package) - A spatially-explicit eco-evolutionary mechanistic model with a modular implementation that allows exploring the consequences of ecological and macroevolutionary processes across realistic or theoretical spatio-temporal landscapes.
 
 ### Forest Modeling and Analysis