update of timeline font for KAGRA

small tuning of timeline and text

text correction

another try

another push to get the figure to show up

maybe new timeline

Update of date and timeline for May start of O4

date update

Text touchup; cancel LVEM for mid-Nov 2022

shift in start of O5 for LIGO; update to indicate that March 2023 is uncertain

Further update on text discussing LVKEM calls

September update of observing plan

point to public webinar page

The mid-June update for later O4 and O5 start

Update text to May

small change in bottom text

This is to get the date right; it is in fact for the 5th of May