Update Overview.qmd

Adding community links

docs/resources/Overview.qmd

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-# Overview
+## Overview
 
+• [2024 Global Symposium](https://www.ohdsi.org/ohdsi2024/)
+• [OHDSI home page](https://www.ohdsi.org)
+• [Work Groups](https://www.ohdsi.org/workgroups/)
+• [OHDSI Forums](https://forums.ohdsi.org)
+• [Athena](http://Athena.ohdsi.org) 
+• [Book of OHDSI](https://ohdsi.github.io/TheBookOfOhdsi/) 
+• [Atlas Demo](http://atlas-demo.ohdsi.org/#/home)
+• [USAGI](https://github.com/OHDSI/Usagi) 
+• [Data Quality Dashboard](https://github.com/OHDSI/DataQualityDashboard)
+• [ACHILLES](https://github.com/OHDSI/Achilles) 
+• [OHDSI Tutorials](https://github.com/OHDSI/Tutorial-ETL) 
+• [EHDEN Academy](https://academy.ehden.eu)
+• [ETL CDM builder](https://github.com/OHDSI/ETL-CDMBuilder)
+• [Sql Render](https://ohdsi.github.io/SqlRender/articles/UsingSqlRender.html) 
+
+# Working Groups
+• HSIG MS Teams
+o Healthcare Systems Interest Group | General | Microsoft Teams
+• OMOP CDM home page
+o https://ohdsi.github.io/CommonDataModel/
+• CDM GitHub
+o https://github.com/OHDSI/CommonDataModel 
+• Themis MS Teams
+o Workgroup - Common Data Model | THEMIS Subgroup | Microsoft Teams
+• Themis GitHub
+o https://github.com/OHDSI/Themis
+• Themis convention library
+o https://ohdsi.github.io/Themis/ 
+• HADES
+o https://ohdsi.github.io/Hades/ 
+• Achilles Characterization:
+o https://github.com/OHDSI/Achilles
+o https://ohdsi.github.io/Achilles/
+• OHDSI Evidence Network
+o https://github.com/ohdsi-studies/OhdsiEvidenceNetwork 
+
+• OMOP code on Epic user web 
+o https://userweb.epic.com/Thread/99407/OMOP-All-of-Us-Master-OMOP-Thread/
+o https://userweb.epic.com/Home/Attachment/E0E5302/36568