message: docs: fix linter errors for accessibility page
  This addresses a part of the issue
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diff: @@ -169,8 +169,8 @@ Books
  <!-- vale Angular.Google_Quotes = NO -->
  -* "A Web for Everyone: Designing Accessible User Experiences", Sarah Horton and Whitney Quesenbery
  -* "Inclusive Design Patterns", Heydon Pickering
  +* "A Web for Everyone: Designing Accessible User Experiences," Sarah Horton and Whitney Quesenbery
  +* "Inclusive Design Patterns," Heydon Pickering
  <!-- vale Angular.Google_Quotes = YES -->
  