Corrects the use of an before Number to a for proper grammar. (#1896)

SHA: b8a7cdb
Reason: push, by whimboo

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

Author: GeorgiosVeropoulos

index.html

@@ -176,7 +176,7 @@
 .mdn .samsunginternet_android::before{background-image:url(https://www.w3.org/assets/logos/browser-logos/samsung-internet/samsung-internet.svg)}
 .mdn .webview_android::before{background-image:url(https://www.w3.org/assets/logos/browser-logos/android-webview/android-webview.png)}
 </style>
-<meta name="revision" content="6b43932257f55d69edf4c8cfce159be2c094819a">
+<meta name="revision" content="b8a7cdb4a1e9112b6dd45fe70e0f0c3e57e225f5">
 <meta name="description" content="WebDriver is a remote control interface
 that enables introspection and control of user agents.
 It provides a platform- and language-neutral wire protocol
@@ -289,7 +289,7 @@
     ],
     "profile": "web-platform"
   },
-  "gitRevision": "6b43932257f55d69edf4c8cfce159be2c094819a",
+  "gitRevision": "b8a7cdb4a1e9112b6dd45fe70e0f0c3e57e225f5",
   "publishISODate": "2025-05-12T00:00:00.000Z",
   "generatedSubtitle": "W3C Editor's Draft 12 May 2025"
 }</script>
@@ -9779,7 +9779,7 @@ <h1 id="title" class="title">WebDriver</h1>
   of <a href="#dfn-getting-properties" class="internalDFN" data-link-type="dfn" id="ref-for-dfn-getting-properties-62">getting the property</a> <code>y</code>
   from <var>action item</var>.
 
- </p></li><li><p>If <var>y</var> is not an <a href="#dfn-number" class="internalDFN" data-link-type="dfn" id="ref-for-dfn-number-13">Number</a>, return <a href="#dfn-error" class="internalDFN" data-link-type="dfn" id="ref-for-dfn-error-232">error</a>
+ </p></li><li><p>If <var>y</var> is not a <a href="#dfn-number" class="internalDFN" data-link-type="dfn" id="ref-for-dfn-number-13">Number</a>, return <a href="#dfn-error" class="internalDFN" data-link-type="dfn" id="ref-for-dfn-error-232">error</a>
   with <a href="#dfn-error-code" class="internalDFN" data-link-type="dfn" id="ref-for-dfn-error-code-212">error code</a> <a href="#dfn-invalid-argument" class="internalDFN" data-link-type="dfn" id="ref-for-dfn-invalid-argument-89">invalid argument</a>.
 
  </p></li><li><p>Set the <code>y</code> property of <var>action</var>
@@ -14336,7 +14336,7 @@ <h1 id="title" class="title">WebDriver</h1>
     </dd><dt id="bib-wai-aria-1.2">[wai-aria-1.2]</dt><dd>
       <a href="https://www.w3.org/TR/wai-aria-1.2/"><cite>Accessible Rich Internet Applications (WAI-ARIA) 1.2</cite></a>. Joanmarie Diggs; James Nurthen; Michael Cooper; Carolyn MacLeod.  W3C. 6 June 2023. W3C Recommendation. URL: <a href="https://www.w3.org/TR/wai-aria-1.2/">https://www.w3.org/TR/wai-aria-1.2/</a>
     </dd><dt id="bib-webdriver-bidi">[WebDriver-BiDi]</dt><dd>
-      <a href="https://www.w3.org/TR/webdriver-bidi/"><cite>WebDriver BiDi</cite></a>. James Graham; Alex Rudenko; Maksim Sadym.  W3C. 8 May 2025. W3C Working Draft. URL: <a href="https://www.w3.org/TR/webdriver-bidi/">https://www.w3.org/TR/webdriver-bidi/</a>
+      <a href="https://www.w3.org/TR/webdriver-bidi/"><cite>WebDriver BiDi</cite></a>. James Graham; Alex Rudenko; Maksim Sadym.  W3C. 12 May 2025. W3C Working Draft. URL: <a href="https://www.w3.org/TR/webdriver-bidi/">https://www.w3.org/TR/webdriver-bidi/</a>
     </dd><dt id="bib-webidl">[WEBIDL]</dt><dd>
       <a href="https://webidl.spec.whatwg.org/"><cite>Web IDL Standard</cite></a>. Edgar Chen; Timothy Gu.  WHATWG. Living Standard. URL: <a href="https://webidl.spec.whatwg.org/">https://webidl.spec.whatwg.org/</a>
     </dd><dt id="bib-xpath">[XPATH]</dt><dd>