If you contribute to the Drill docs, please include the last-modified date on docs you add or change. On the readme <https://github.com/apache/drill/tree/gh-pages> for the Drill gh-pages repo, you'll see how to make a simple one-time, local setup to your Apache Drill repo clone. After the set up, the last-modified date will appear in any docs you commit.
For more info, see Drill-4213 <https://issues.apache.org/jira/browse/DRILL-4213?focusedCommentId=15071288&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15071288> .
