add the settings.json.dist to a .gitignore on the root of the extra example
add the settings.json.dist to a .gitignore on the root of the extra example

Signed-off-by: Henrique Vicente <d390f26e2f50ad5716a9c69c58de1f5df9730e3b@gmail.com>

henvic/phantom-casper-simple-talk