Update act-rules-format.bs for secondary req and acc support (#540)

* Update act-rules-format.bs Add Secondary requirements and accessibility support conclusion * Update act-rules-format/act-rules-format.bs * Update act-rules-format/act-rules-format.bs Co-authored-by: Wilco Fiers <[email protected]> --------- Co-authored-by: Wilco Fiers <[email protected]> Co-authored-by: Daniel Montalvo <[email protected]>
w3c · Nov 30, 2023 · 8ea041a · 8ea041a
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@@ -225,7 +225,9 @@ Rules that can be used to determine if an accessibility requirement is *satisfie
 
 A secondary accessibility requirement is a requirement that is correlated with the rule, but for which the rule is not designed to test. The outcome of the rule impacts the result of the accessibility requirement, but the rule is not intended to test the conformance of that requirement. This correlation often results in some of the rule's test cases not satisfying the secondary accessibility requirement.
 
-When the rule is not designed to test the accessibility requirement, or failed outcomes of the rule still require further testing for the accessibility requirement, the rule <em class="rfc2119">may</em> map the accessibility requirement as secondary. When an ACT rule maps to a secondary requirement, it <em class="rfc2119">must</em> include an explanation of why that requirement is secondary.
+When the rule is not designed to test the accessibility requirement, or failed outcomes of the rule still require further testing for the accessibility requirement, the rule <em class="rfc2119">may</em> map the accessibility requirement as Secondary. When an ACT rule maps to a Secondary requirement, it <em class="rfc2119">must</em> include an explanation of why that requirement is Secondary in the Background section of the rule.
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+When the rule is designed to test an accessibility requirement, differences in [accessibility support](#accessibility-support) <em class="rfc2119">must not</em> be a reason for that requirement to be a secondary accessibility requirement. 
 
 Some scenarios when a rule will have Secondary requirements include: