Fix HTML in docs end-of-support message (#4623)

Author: trivikr

doc-src/templates/default/layout/html/v2note.erb

@@ -2,7 +2,7 @@
 	<div class="alert-icon"></div>
 	<div>
 		<div class="alert-header">
-      We <a href"https://aws.amazon.com/blogs/developer/announcing-end-of-support-for-aws-sdk-for-javascript-v2">announced</a> the upcoming
+      We <a href="https://aws.amazon.com/blogs/developer/announcing-end-of-support-for-aws-sdk-for-javascript-v2">announced</a> the upcoming
       end-of-support for AWS SDK for JavaScript v2.
     </div>
 		<div class="alert-content">