Update NEWS.md and AUTHORS for 1.8.1 (#3353)

AUTHORS

@@ -40,6 +40,7 @@ Benjamin Wuethrich   <benjamin@koho.ca>
 Benoit de Chezelles  <bew@users.noreply.github.com>
 Bernard Niset        <bernard.niset@gmail.com>
 Bhargava Mummadireddy <kishoreinvits@gmail.com>
+Binbin Qian          <qianbinbin@hotmail.com>
 Bradley Skaggs       <bskaggs@acm.org>
 Brahm Lower          <bplower@gmail.com>
 Brendan Macmillan    <melbourne.research@gmail.com>
@@ -181,6 +182,7 @@ Steven Ihde          <sihde@hamachi.us>
 Steven Maude         <StevenMaude@users.noreply.github.com>
 Steven Penny         <svnpenn@gmail.com>
 Thalia Archibald     <thalia@archibald.dev>
+TheOdd               <owenhines@protonmail.com>
 Thomas Bozeman th026106 <thomas.bozeman@digitalglobe.com>
 Thomas R. Hall       <trhall@trhall.org>
 Thomas Sibley        <tom@zulutango.org>
@@ -229,3 +231,4 @@ wellweek             <148746285+wellweek@users.noreply.github.com>
 wllm-rbnt            <william.robinet@conostix.com>
 zstadler             <zeev.stadler@gmail.com>
 наб                  <nabijaczleweli@nabijaczleweli.xyz>
+엄태용               <lg65438805@gmail.com>