arquitetura.md

@@ -149,7 +149,7 @@ $ sudo service docker start
 $ sudo chkconfig docker on
 $ sudo curl -L https://github.com/docker/compose/releases/download/1.21.0/docker-compose-`uname -s`-`uname -m` | sudo tee /usr/local/bin/docker-compose > /dev/null
 $ sudo chmod +x /usr/local/bin/docker-compose
-$ ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
+$ sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
 $ sudo yum install git
 $ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.2/install.sh | bash
 ```