[OKTA-1126055] Plan your migration doc (#6084)

* Plan your migration doc

* Clean up

* Link fix

* Some wording updates per Dan Marma in the Google doc

* Wording change

* Rename section to be more consistent and move order of sections

* Renamed a section to be consistent

* Feedback added from Dan Marma

* Add all comments and suggestions from Dan Marma

* Additional clarity fixes

* Apply suggestions from code review

Co-authored-by: Susan <susan.harper@okta.com>

* Apply suggestions from code review

Co-authored-by: Susan <susan.harper@okta.com>

* Finished addressing the last of Susan's comments

---------

Co-authored-by: Susan <susan.harper@okta.com>

Author: annejuan-okta

packages/@okta/vuepress-site/docs/guides/index.md

@@ -75,6 +75,7 @@ guides:
  - mfa
  - migrate-customizations
  - migrate-to-okta-prerequisites
+ - migrate-to-okta-plan
  - migrate-to-okta-bulk
  - migrate-to-okta-password-hooks
  - migrate-to-okta-with-scripts

packages/@okta/vuepress-site/docs/guides/migrate-to-okta-plan/index.md

@@ -0,0 +1,7 @@
+---
+title: Plan your user migration to Okta
+excerpt: Create a comprehensive plan for migrating users to Okta
+layout: Guides
+sections:
+ - main
+---