Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  f9685b2ddf4d44b54a311ce14d73e8506038a3ec

js/README.txt instructions to run node server

I am a very lazy person and would have loved to get some basic
instructions to easily start the node server (ie without having to
browse the wiki).

Added in the instructions to create a localsettings.js and how to start
the server.  Point to the extensive wiki doc.

Change-Id: If0d2091eff2cfdf6b09ff07c415774141d4b5c50