Update github issue links in README
Update github issue links in README

fix [github] link, replace discordius with LessWrong2
Discordius/Telescope,Discordius/Lesswrong2,Discordius/Lesswrong2,Discordius/Lesswrong2,Discordius/Telescope,Discordius/Telescope,Discordius/Lesswrong2,Discordius/Telescope