docs: Adding README, COPYING, and AUTHORS

Change-Id: I37b3f5fa98530645ca4dee5ed4abac2d1bd49cbf
diff --git a/AUTHORS.md b/AUTHORS.md
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+ChronoSync authors
+==================
+
+- Zhenkai Zhu         <http://irl.cs.ucla.edu/~zhenkai/>
+- Alexander Afanasyev <http://lasr.cs.ucla.edu/afanasyev/index.html>
+- Chaoyi Bian         <bcy@pku.edu.cn>
+- Yingdi Yu           <http://irl.cs.ucla.edu/~yingdi/web/index.html>