Merge pull request #238 from nasa/gh-pages-gov-shutdown

Update header with government funding notice point#3

Author: darith27

assets/html/header.html

@@ -36,6 +36,7 @@
   </section>
   <section class="alert">
       <span class="closebtn" onclick="this.parentElement.style.display='none';">&times;</span>
+      <p><strong>Due to the lapse in federal government funding, NASA is not updating this website. We sincerely regret this inconvenience.</strong></p>
       <strong>⚠ Please Note:</strong> The Earth API has been archived and replaced with <a href="https://api.nasa.gov/#gibs">Earthdata GIBS API</a>. Please update your bookmarks or projects as needed.
     </section>
   <header style = "box-shadow: 0px 4px 8px darkgrey !important;" class="usa-header usa-header-basic" role="banner" id = "myHeader">