update tracking code
site search to identify most frequent search keywords
show en for sitemap.xml for now
Update in_tail.txt
Merge pull request #27 from tagomoris/patch-2

Update in_tail.txt
promote basic configuration doc.
sorry but test for buzzy sponsor logo :(
pardot form
improve style: free-alternative-to-splunk-by-fluentd.txt
modify title (but not filename since that would break the app links): free-alternative-to-splunk-by-fluentd.txt