changing 0 comments to something else…

I am using WordPress theme Swift 3.1.8 by Satish Gandham and want to change “0 commments” to “Speak Your Mind”. Do I simply replace Line 99 in my index.php file:

‘<php comments_number(‘no shouts’,’one shout’,’% shouts’); ?>’

with this:

‘<?php comments_number(‘Speak Your Mind’); ?>’

And what about my comments.php… do I change Line 16:

‘<?php comments_number(‘No Comments’, ‘One Comments’, ‘% Comments’ );?>’

with this:

‘<?php comments_number(‘Speak Your Mind’);?>’

Thank you in advance,
Trish