message: Reflow NEXT RELEASE section to 80 char width
diff: ### Internals
  -* The RuntimeLibrary of the Windows build is changed from MultiThreadedDLL to just MultiThreaded so as to statically link
  - the Visual C++ runtime libraries, removing the onus on end-users to have the correct runtime redistributable package
  - or satellite assembly pack installed. Libraries that link against Core on Windows will have to adjust their compiler flags accordingly.
  +* The RuntimeLibrary of the Windows build is changed from MultiThreadedDLL to
  + just MultiThreaded so as to statically link the Visual C++ runtime libraries,
  + removing the onus on end-users to have the correct runtime redistributable
  + package or satellite assembly pack installed. Libraries that link against Core
  + on Windows will have to adjust their compiler flags accordingly.
  PR [#2611](https://github.com/realm/realm-core/pull/2611).
  * Win32+UWP: Switched from pthread-win32 to native API.
  PR [#2602](https://github.com/realm/realm-core/pull/2602).
  -* Implemented inter-process CondVars on Windows (Win32 + UWP). They should be fair and
  - robust.
  +* Implemented inter-process CondVars on Windows (Win32 + UWP). They should be
  + fair and robust.
  PR [#2497](https://github.com/realm/realm-core/pull/2497).
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