If you have a CV on LinkedIn, you can download it, upload it to your WA profile and it will be converted and added to your profile.
On LinkedIn you go to your profile, click More... and then Save to Pdf.
To upload to your WA profile, go to My WA and click Edit in the upper right.
Scroll down to Experience, click one of the upload buttons and upload your file.
All experience is automatically saved to your profile after upload, but you need to manually add degree level for education.