Chrome apps banner for full deprecation

Updating banner across Chrome apps docs for deprecation

Change-Id: Ib29fc705ad37cc21c46eb7eb23daccf089a6d300
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2003112
Commit-Queue: Meggin Kearney <mkearney@chromium.org>
Reviewed-by: Meggin Kearney <mkearney@chromium.org>
Reviewed-by: Anthony LaForge <laforge@chromium.org>
Auto-Submit: Meggin Kearney <mkearney@chromium.org>
Cr-Commit-Position: refs/heads/master@{#732223}

chrome/common/extensions/docs/templates/private/article.html

@@ -20,14 +20,11 @@
     {{?isApps}}
     <p class="caution">
       <b>Important:</b>
-      Chrome will be removing support for Chrome Apps on Windows, Mac, and
-      Linux.  Chrome OS will continue to support Chrome Apps.  Additionally,
-      Chrome and the Web Store will continue to support extensions on all
-      platforms.
-      <a href="http://blog.chromium.org/2016/08/from-chrome-apps-to-web.html">
-      Read the announcement</a> and learn more about
-      <a href="https://developers.chrome.com/apps/migration">
-      migrating your app</a>.
+        Chrome will be removing support for Chrome Apps on all platforms.
+        Chrome browser and the Chrome Web Store will continue to support extensions.
+        <a href="https://blog.chromium.org/2020/01/moving-forward-from-chrome-apps.html"><strong>Read the announcement</strong></a>
+        and learn more about
+        <a href="https://developers.chrome.com/apps/migration"><strong>migrating your app</strong></a>.
     </p>
     {{/isApps}}
 {{- This is unindented because it may contain whitespace-sensitive tags. -}}