Further update README following publication

This continues the change that commit 1c3dd320 started.

README.md

-Research on *delayed open source publication* (DOSP): the practice of
-publishing a software release under a proprietary license initially,
-then later (usually in a planned fashion) publishing that release's
-source code under an open source license.
-
-While delayed open source publication has been somewhat rare, there are
-some examples of it across the history of open source -- in fact, some
-of the examples (e.g., Aladdin Ghostscript) predate the coining of the
-term "open source".  To the best of our knowledge, when software
-authors have done this it has usually been in a fairly predictable
-way.  For example, when release N goes out under a proprietary
-license, release N-1 is then (re)published under an open source
-license.
-
 This repository is a collection of research, and a resultant
 [whitepaper](https://opensource.org/delayed-open-source-publication),
-about various examples of DOSP and show how they are alike or
-different.  We also analyze the effects (if any) of this practice
-generally on open source as a field.  Our purpose is to provide
-accurate historical description and objective analysis; our work here
-represents no position on the desirability or undesirability of
-delayed open source publication.
+about *delayed open source publication* (DOSP): the practice of
+publishing a software release under a proprietary license initially,
+then later publishing that release's source code under an open source
+license.  (This is often, but not always, done in a predictable
+fashion: e.g., when release N goes out under a proprietary license,
+release N-1 is then (re)published under an open source license.)
+
+There are examples of DOSP across the history of open source -- in
+fact, some of the examples (e.g., Aladdin Ghostscript) predate the
+coining of the term "open source".  We looked at various instances of
+DOSP and examined how they are alike or different.  We also analyzed
+the effects (if any) of DOSP on open source as a field.  Our purpose
+was to provide accurate historical description and objective analysis;
+our work here represents no position on the desirability or
+undesirability of delayed open source publication.
 
 This research was supported by the [Open Source Initiative
 (OSI)](https://opensource.org/).  The report is now completed and