Update editors

Thanks Jake and Marijn for their great contributions to the
ServiceWorker.  Especially, they adviced me on standardizing the
declarative routing (aka. SW static routing API), which brought me lots
of learnings to the ServiceWorker and the standardization process.

Recently, I and Monica became editors, and this change updates the
editor lines.

Author: yoshisatoyanagisawa

docs/index.bs

@@ -5,10 +5,12 @@ ED: https://w3c.github.io/ServiceWorker/
 TR: https://www.w3.org/TR/service-workers/
 Shortname: service-workers
 Level:
-Editor: Jake Archibald, w3cid 76394, Google, [email protected]
-Editor: Marijn Kruisselbrink, w3cid 72440, Google, mek@chromium.org
+Editor: Monica Chintala, w3cid 160353, Microsoft, [email protected]
+Editor: Yoshisato Yanagisawa, w3cid 142513, Google, yyanagisawa@chromium.org
 Former Editor: Alex Russell, Google, [email protected]
+Former Editor: Jake Archibald, w3cid 76394, Google, [email protected]
 Former Editor: Jungkee Song, Microsoft‚ represented Samsung until April 2018, [email protected]
+Former Editor: Marijn Kruisselbrink, w3cid 72440, Google, [email protected]
 Repository: w3c/ServiceWorker
 Group: serviceworkers
 !Tests: <a href=https://github.com/web-platform-tests/wpt/tree/master/service-workers>web-platform-tests service-workers/</a> (<a href=https://github.com/web-platform-tests/wpt/labels/service-workers>ongoing work</a>)