Merge remote-tracking branch 'upstream/master'

realthunder committed Nov 13, 2021

resolves #502

ceremcem committed Mar 7, 2021

Fix typos

luzpaz committed Feb 15, 2021

Update documents

realthunder committed Sep 6, 2018

Fix typo

realthunder committed Jul 29, 2018

Initial commit

realthunder committed Feb 1, 2018