fix deploy action

Author: JeremyDolle

documentation/README.md

@@ -30,6 +30,7 @@ This command generates static content into the `build` directory and can be serv
 $ GIT_USER=<Your GitHub username> USE_SSH=true yarn deploy
 ```
 
+
 If you are using GitHub pages for hosting, this command is a convenient way to build the website and push to the `gh-pages` branch.
 
 ### Continuous Integration