Reflow the blurb in the ReleaseNotes too.

Changes in version 0.4.5.6 - 2021-02-15

  The Tor 0.4.5.x release series is dedicated to the memory of Karsten

  Loesing (1979-2020), Tor developer, cypherpunk, husband, and

  father. Karsten is best known for creating the Tor metrics portal and

  leading the metrics team, but he was involved in Tor from the early

  days. For example, while he was still a student he invented and implemented

  the v2 onion service directory design, and he also served as an ambassador

  to the many German researchers working in the anonymity field. We loved him

  and respected him for his patience, his consistency, and his welcoming

  approach to growing our community.

  Loesing (1979-2020), Tor developer, cypherpunk, husband, and father.

  Karsten is best known for creating the Tor metrics portal and leading

  the metrics team, but he was involved in Tor from the early days. For

  example, while he was still a student he invented and implemented the

  v2 onion service directory design, and he also served as an ambassador

  to the many German researchers working in the anonymity field. We

  loved him and respected him for his patience, his consistency, and his

  welcoming approach to growing our community.

  This release series introduces significant improvements in relay IPv6

  address discovery, a new "MetricsPort" mechanism for relay operators to

  measure performance, LTTng support, build system improvements to help when

  using Tor as a static library, and significant bugfixes related to

  Windows relay performance.  It also includes numerous smaller features and

  bugfixes.

  Below are the changes since 0.4.4.7. For a list only of the changes

  since 0.4.5.5-rc, see the ChangeLog file.

  address discovery, a new "MetricsPort" mechanism for relay operators

  to measure performance, LTTng support, build system improvements to

  help when using Tor as a static library, and significant bugfixes

  related to Windows relay performance. It also includes numerous

  smaller features and bugfixes.

  Below are the changes since 0.4.4.7. For a list of changes since

  0.4.5.5-rc, see the ChangeLog file.

  o Major features (build):

    - When building Tor, first link all object files into a single