The License
http://creativecommons.org/licenses/by-sa/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
Attributing this work
As per section 3(a)(1)(A)(i) of the license, you are required to attribute this work. How you do this will depend on the medium:
Online
Append a readable and visible do-follow link such as:
<html>
"The title of the work" (c) by <a href="https://karyamart.kafkai.com/">Karyamart</a> and is licensed under CC BY-SA
</html>
somewhere at the end of the work on your web page.
Offline
Attach this license text with the work, and append this text at the end of the work:
"The title of the work" (c) by Karyamart (https://karyamart.kafkai.com/) and is licensed under CC BY-SA
Replace “The title of the work” with the actual title of the work in the examples above.