About error about in user YAML

I meet the “Error in user YAML: (): did not find expected key while parsing a block mapping at line 1 column 1” in .md file, when I open it on github. The wrong content is shown as below, I think it is same as the item entry templet.

--- Title: 'Supply Chain Attack' Description: 'A supply chain attack targets an organization\'s software or hardware supply chain, compromising it to gain unauthorized access or control over the organization\'s systems.' Subjects: - 'Computer Science' - 'Cybersecurity' Tags: - 'Cybersecurity' CatalogContent: - 'introduction-to-cybersecurity' - 'paths/fundamentals-of-cybersecurity' ---

I think it might be a problem with the backslashes in the description. I could get it to pass if I took them out and replaced the outer quotes with double quotes:

Description: "A supply chain attack targets an organization's software or hardware supply chain, compromising it to gain unauthorized access or control over the organization's systems."

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Thanks for the help, problem solved.

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