Fix broken links on push command page

[HCloward]

Describe the bug

There are two broken links on the push command page including a link to Organization slug and one to Project slug.

To Reproduce Steps to reproduce the behavior:

1. Go to https://redocly.com/docs/cli/commands/push
2. Click Organization slug or Project slug in the Command options table.
3. See a 404 page.

Expected behavior

We need to either delete the links and put the info direction in the table, or add back the content that was removed in the Realm docs.

This was noted in a feedback report on the embedded docs project.