update mi-10-steps.md

[xyb994]

Please verify the following:

• This issue is related to the Mobile Interns First Steps document or myPlanet User Manual.
• You have searched for relevant keywords in recent open and closed issues to avoid duplicates.

URL to the MDwiki page containing the problem

https://open-learning-exchange.github.io/#!pages/mi/mi-10-steps.md#Step_8_-_Create_Issues_and_Pull_Requests

Problem

Currently we say Create 3 new issues in our GitHub repository regarding Mobile Intern First Steps or myPlanet User Manual. Occasionally we get new issues mentioning wanting to fix MDwiki's certain weird behavior. MDwiki is a deprecated project and it was modified when we adopt it and initially to make open-learning-exchange.github.io. Advised by dogi to not touch it...

Screenshots (when necessary)

No response

Proposed solution(s)

update to Mobile Intern First Steps' content instead