added longitudinal analysis for 2010 to 2020 vulnerability comparison

created vulnerability dataset based on preferred methodology

revised vulnerability tool with 2020 ACS data

modified gitignore

added download buttons to download resulting shapefiles and geojson

updated to reflect Austin, TX instead of Atlanta, GA

removed extra variables in query2 that caused an error message

completed intro comment of process_data.R

put more resources into global.r and deleted ghost code

amended readme

corrected image link

modified readme

initial seed with bare bones shiny app code

Update .gitignore

Initial commit