Update Readme.md

Readme.md

 # COVID-19 models
 
-This repository is to share models and code for the analysis of COVID-19/SARS-CoV-2 mechanisms.
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+This repository is to share models and code for the analysis of COVID-19/SARS-CoV-2 mechanisms.
+
+- **Curation** folder contains models curated in CellDesigner, Newt and SBGN-ED
+- **WikiPathways.md** lists key COVID19 pathways on the [WikiPathways platform](https://wikipathways.org), 
+a dedicated collection [here](https://www.wikipathways.org/index.php/Portal:Disease/COVIDPathways).
+
+See the [COVID-19 Disease Map project website](https://covid.pages.uni.lu/map_curation) for more information.
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