docs: fix website for migrating from cas

[jigisha620]

Fixes #6363

Description
Website broken for migrating to CAS. This PR adds a fix for it. More details can be found in the issue linked above.

How was this change tested?
make website

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

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[coveralls]

Pull Request Test Coverage Report for Build 9575739454

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 82.467%

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Totals
Change from base Build 9574761143:	0.0%
Covered Lines:	5550
Relevant Lines:	6730

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9577131949

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.01%) to 82.481%

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Totals
Change from base Build 9574761143:	0.01%
Covered Lines:	5551
Relevant Lines:	6730

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💛 - Coveralls

[rschalo]

LGTM 🚢