[eslint] semi-spacing

.eslintrc.js

         'padded-blocks': 0,
         'quote-props': 0,
         'semi': [ 'error', 'always' ],
+        'semi-spacing': 2,
         'space-before-blocks': 2,
         'space-before-function-paren': [ 'error', 'never' ],
         'space-in-parens': [ 'error', 'never' ],

doc/example/example.js

     });
     room.on(JitsiMeetJS.events.conference.CONFERENCE_JOINED, onConferenceJoined);
     room.on(JitsiMeetJS.events.conference.USER_JOINED, function(id) {
-        console.log("user join");remoteTracks[id] = [];
+        console.log("user join"); remoteTracks[id] = [];
     });
     room.on(JitsiMeetJS.events.conference.USER_LEFT, onUserLeft);
     room.on(JitsiMeetJS.events.conference.TRACK_MUTE_CHANGED, function(track) {