You should indicate the course/program name and that the certificate you earned or learning you gained is from edX.
Here are some good resources on the topic:
You can also share the verified certificate by using through an easy-to-share link we provide. More details at: http://edx.readthedocs.io/projects/edx-guide-for-students/en/latest/SFD_certificates.html#sharing-or-printing-a-certificate
The MicroMasters credential is issued from edX. You should use the following wording template as a basis for how to list the program/certificate on your resume/CV:
MicroMasters Certificate in _____[program name]_____ from edX, in partnership with RITX.
So for example, the Project Management MicroMasters program would be "MicroMasters Certificate in Project Management from edX, in partnership with RITX." We recommend putting this under a heading of "Professional Training" or "Professional Development" instead of "Education," which typically is reserved for listing accredited degrees.
If you apply to RIT and complete a full Master's degree or Advanced Certificate program, then your Master's degree or Advanced Certificate is issued through the Rochester Institute of Technology (RIT). Your Master's degree or Advanced Certificate can be listed under a heading of "Education."