Issue #, if available:

Description of changes: Updated the crosslink_redirect to generate correct redirects for the new docs domain. Current system has a script to correct the redirects inside CPP Catapult instance which will be removed.

Check all that applies:

• Did a review by yourself.
• Added proper tests to cover this PR. (If tests are not applicable, explain.)
  Current system does not have tests for docs. Ran tests for the changes on local system.
• Checked if this PR is a breaking (APIs have been changed) change.
• Checked if this PR will not introduce cross-platform inconsistent behavior.
• Checked if this PR would require a ReadMe/Wiki update.

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