Update signature-based-restrictions-explainer.markdown (#127)

SHA: e3a0733
Reason: push, by mozfreddyb

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

index.html

@@ -7,7 +7,7 @@
   <link href="https://www.w3.org/StyleSheets/TR/2021/W3C-ED" rel="stylesheet">
   <meta content="Bikeshed version 82ce88815, updated Thu Sep 7 16:33:55 2023 -0700" name="generator">
   <link href="http://www.w3.org/TR/SRI/" rel="canonical">
-  <meta content="0f7980a82764b9a9008005bbd3f887eeb0755cad" name="document-revision">
+  <meta content="e3a0733122b2d23596a8659cc32657f4dde05ffb" name="document-revision">
 <style>/* Boilerplate: style-autolinks */
 .css.css, .property.property, .descriptor.descriptor {
     color: var(--a-normal-text);