When you land on a TechNet Wiki article for the first time, it is not clear that you can edit the wiki pages. This is because you must first join and sign in to see the “Edit” button.
This video demo shows that this process start-to-finish takes only a few minutes.
Here’s How to Join.
To sign up
IMPORTANT: The sign-in name cannot be changed once you create it. If you make a mistake, the account must be deleted, and then you can create another one. Take care entering your sign-in name. You can change your display name whenever you wish.
Finish by accepting the services agreement:
NOTE: You will receive a notification e-mail at the e-mail address you entered in step 3, confirming your account creation.