Dear ilya_71,
Thank you so much for using our theme weblog.
You have following method of editing read more,
1. You can buy the premium version so that you can get the options to change it. For addition features, you can buy the premium version.
2. You can create mo file of your language and translate the theme.
3. You can directly edit the theme file via codes, codes are inside acmethemes folder of theme. You can search read more and edit it directly.
Let us know if you need any additional help.
Regards