Use a normal Editor for your comments, with all the text formatting options, instead of Basic Editor. The same editor as for Questions and Answers.
Go to Admin > Posting > Default editor for comments
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.