If you want to change the wording for the comment count on posts, perhaps from the default of “Leave a Comment” to simply “0 Comments”, then it’s quick and easy to do.
Open up the functions.php file in your child theme and add the following code. The code should be entered at the end of the file, just before the closing ?> if there is one.
The important bits are the attribute values for zero, one and more, and these give the string of text for having no comments, a single comment, and two or more comments respectively. The % symbol is a place holder for the actual number of comments. Amend these text values to whatever you want it to be.