Update README.md

README.md

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 Location, size, and type of electricity generation plants and transmission lines, in Europe and US.
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 ## Use
+Connect to the GitLab container registry with privileges for the FACT group:
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+
+>docker login -u FACT_token -p glpat-J5_QFJiGwLkfgqJsnU2H registry.git.nilu.no
+
+
+Run this data service:
+
+
+>docker run -t -i --name fact_power -e MARIADB_DATABASE=FACT_power -e MYSQL_ROOT_PASSWORD=devops -p 3313:3306 -d registry.git.nilu.no/fact/data/fact_power:0.1
+
+The container makes available a MariaDB instance with the full database on population **FACT_power**. It is reachable on port 3313 of the localhost and the root password is 'devops'.
 
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 ## Specifications