Focus visible rule: Fix typo (act-rules#2082)

Author: WilcoFiers

_rules/sequentially-focusable-element-has-visible-focus-oj04fd.md

@@ -42,7 +42,7 @@ Default styling in user agents provides a focus indication for focusable element
 
 WCAG 2.0 and 2.1 do not have any requirement of how big or small focus indicator should be, or how far or near from the [focusable][] element it should be. Thus it is possible to pass this rule and [Success Criterion 2.4.7 Focus Visible][sc247] with barely perceptible changes at the other end of the page. That would however still be an accessibility issue. WCAG 2.2 includes [Success Criterion 2.4.11 Focus Appearance][sc2411] and [Success Criterion 2.4.12 Focus Not Obscured (Minimum)][sc2412] specifying how big the focus indicator should be. All Passed Examples in this rule satisfy those success criteria.
 
-WCAG does not require that the focus indicator for each [focusable][] element is unique in appearance. Therefore, this rule can pass even if several focus indicators are identical. Such a situation may nonetheless cause confusion and all Examples in this rule avoid it.
+WCAG does not require that the focus indicator for each [focusable][] element is unique in appearance. Therefore, this rule can pass even if several focus indicators are identical. Such a situation may nonetheless cause confusion and all examples in this rule avoid it.
 
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