Update README.md

README.md

-# Title
+# FACT Buildings Footprint and Height
+ML detected building footprints and height open database 
 
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 ## Use
+>docker run -t -i --name fact_bldgs -e MARIADB_DATABASE=FACT_bldgs -e MYSQL_ROOT_PASSWORD=devops -p 3315:3306 -d registry.git.nilu.no/fact/data/fact_bldgs:0.1
+
 
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 ## Specifications
+Bing Maps open building footprints. with partial global coverage, only US and Europe included here.
 
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 ## Notes
+The code downloads files for European countries and US, transforms them into geojson with right CRS, and then loads them into a DB.
 
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 ### Authors