Update __tests__/html2/markdown/vnext/markdownStreaming.html

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: OEvgeny

__tests__/html2/markdown/vnext/markdownStreaming.html

@@ -78,7 +78,7 @@
         await host.snapshot('local');
       }, { skipCheckAccessibility: true });
 
-      // TODO: figure out why skip doesn;t work with fluent
+      // TODO: figure out why skip doesn't work with fluent
       window.checkAccessibility = async () => {}
     </script>
   </body>