Fix Docker command

[cuducos]

What is the purpose of this Pull Request?

Docker instructions had a typo (br missing in the Docker Hub account name).

What was done to achieve this purpose?
Added the missing letters.

How to test if it really works?
Copy and paste the command from the README.md, execute it and check if it works.

Who can help reviewing it?
@anaschwendler

[anaschwendler]

Last review!

1. Clone the project:

$ git clone git@github.com:datasciencebr/rosie.git

2. Change to Rosie' folder:

$ cd rosie

3. Change to the tested branch:

$ git checkout -b cuducos-fix-docker-command origin/cuducos-fix-docker-command

4. Merge its content:

$ git merge master

5. Run the new Docker commands:

$ docker build -t rosie .
$ docker run --rm -v /tmp/serenata-data:/tmp/serenata-data datasciencebr/rosie run federal_senate

The result:

➜  rosie git:(cuducos-fix-docker-command) ls /tmp/serenata-data 
federal-senate-2008.csv          federal-senate-2011.csv          federal-senate-2014.csv          federal-senate-2017.csv
federal-senate-2008.xz           federal-senate-2011.xz           federal-senate-2014.xz           federal-senate-2017.xz
federal-senate-2009.csv          federal-senate-2012.csv          federal-senate-2015.csv          federal-senate-reimbursements.xz
federal-senate-2009.xz           federal-senate-2012.xz           federal-senate-2015.xz           invalidcnpjcpfclassifier.pkl
federal-senate-2010.csv          federal-senate-2013.csv          federal-senate-2016.csv          suspicions.xz
federal-senate-2010.xz           federal-senate-2013.xz           federal-senate-2016.xz

Done!