Update README.md

Author: leahth

README.md

@@ -4,13 +4,12 @@ The Toxicity of Microplastics Explorer (ToMEx) is a database as well as a data v
 
 The web application is built using a variety of R packages including shiny, shinydashboard, tidyverse, ggplot, plotly, and ssdtools. 
 
-ToMEx 1.0 Application deployed at: https://sccwrp.shinyapps.io/aq_mp_tox_shiny/
-ToMEx 2.0 Application deployed at: https://sccwrp.shinyapps.io/tomex_20_aquatic_organisms/
+Previous versions (<2.0) of ToMEx are accessible at: https://github.com/SCCWRP/aq_mp_tox_shiny
 
 **Contributors**
 
 See web application homepage
 
 **Primary Contact**
 
-Leah Thornton Hampton, Southern California Coastal Water Research Project (leahth@sccwrp.org)
+Leah Thornton Hampton, Southern California Coastal Water Research Project (leahth@sccwrp.org)