translated the article User Timing API into Japanese.
modified some in the conclusion
tone adjustment
corrected inconsistency
Japanese translation for HTML Template
merge
Added translator name
Translated ShadowDOM 201 into Japanese
Translated Shadow DOM 301 into Japanese
Automatically updating the calendar
Automatically updating the calendar
Merge pull request #1092 from agektmr/template_ja

Japanese translation for HTML Templates
Merge pull request #1095 from agektmr/shadowdom301_ja

Translated Shadow DOM 301 into Japanese
Merge pull request #1094 from agektmr/shadowdom201_ja

Translated ShadowDOM 201 into Japanese
Updated Japanese language resource
Merge pull request #1097 from agektmr/shadowdom301_ja

Updated Japanese language resource
Japanese translation of Shadow DOM 101
Some tweaks with updates on Shadow DOM / Custom Elements
Automatically updating the calendar
changes as per @coonsta suggested