docs: updated readme

README.md

-# covid-19-dashboard
+# covid-19-public-data
 
-A Renku project for exploring Covid-19 data sources.
+A Renku project for aggregating data from various covid-19 public data sources.
 
-# Data Sources
+See [Dashboard](files/blob/runs/Dashboard.run.ipynb) for a summary of the data.
+
+# Current Data Sources
 
 ## Covid-19
 
 - https://github.com/CSSEGISandData/COVID-19
-- https://github.com/COVID19Tracking/covid-19-crawler
-- https://github.com/openZH/covid_19
 
 ## General
 
 - https://data.worldbank.org/indicator/SP.POP.TOTL
+- https://worldmap.harvard.edu/data/geonode:country_centroids_az8
+
+# Data Sources to Add
+
+- https://github.com/COVID19Tracking/covid-19-crawler
+- https://github.com/openZH/covid_19
+- https://github.com/pcm-dpc/COVID-19
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