message: Readme: Improve 3rd party section wording
diff: @@ -109,8 +109,11 @@ See the file [COPYING] for copying conditions.
  ### 3rd party software
  -liblcf code includes a copy of [inih] under New BSD license.
  -liblcf code includes a copy of [string-view-lite] and [span-lite] under Boost Software License, Version 1.0.
  +liblcf includes code of the following 3rd party software:
  +
  +- [inih] under New BSD license.
  +- [string-view-lite] and [span-lite] under Boost Software License, Version 1.0.
  +
  See the source code comment headers for license details.
  