nit!

CHANGELOG.md

@@ -30,7 +30,7 @@
 - Solver now correctly handles and prefers direct reference constraints (vcs, file etc.) over public version identifiers ([#5654](/~https://github.com/python-poetry/poetry/pull/5654))
 - Changed the build script behavior to create an ephemeral build environment when a build script is
   specified ([#5401](/~https://github.com/python-poetry/poetry/pull/5401))
-- Improved performance when determining PEP-517 metadata from sources ([#5601](/~https://github.com/python-poetry/poetry/pull/5601))
+- Improved performance when determining PEP 517 metadata from sources ([#5601](/~https://github.com/python-poetry/poetry/pull/5601))
 - Project package sources no longer need to be redefined as global repositories when configuring credentials ([#5563](/~https://github.com/python-poetry/poetry/pull/5563))
 - Replaced external git command use with dulwich, in order to force the legacy behaviour set `experimental.system-git-client` configuration to `true` ([#5428](/~https://github.com/python-poetry/poetry/pull/5428))
 - Improved http request handling for sources and multiple paths on same netloc ([#5518](/~https://github.com/python-poetry/poetry/pull/5518))