few clarifications in README as well as inclduing arXiv record for RACS paper

Author Marcelo Ponce <mponce@scinet.utoronto.ca>
Author date 2019-07-23 16:15:38
Author local date 2019-07-23 12:15:38 -0400
Committer Marcelo Ponce <mponce@scinet.utoronto.ca>
Committer date 2019-07-23 16:15:38
Committer local date 2019-07-23 12:15:38 -0400
Commit 60d9dff1b49be38683277a8d7f230a8bf967b0e8
Tree 65975b3ab84e24c3e94bee69e5dae953ff4a9b70
Parent a38b274ea302d8f7e5439f200c71a1c7789ad5c9
few clarifications in README as well as inclduing arXiv record for RACS paper
Affected files:
README
ViewGit