consolidate changelog entry

Author: rickeylev

CHANGELOG.md

@@ -86,8 +86,6 @@ END_UNRELEASED_TEMPLATE
   multiple times.
 * (tools/wheelmaker.py) Extras are now preserved in Requires-Dist metadata when using requires_file
   to specify the requirements.
-* (pypi) Starlark implementation of the marker evaluation now supports the full PEP440
-  spec for version comparison.
 
 {#v0-0-0-added}
 ### Added
@@ -96,9 +94,9 @@ END_UNRELEASED_TEMPLATE
   (the default), the subprocess's stdout/stderr will be logged.
 * (toolchains) Local toolchains can be activated with custom flags. See
   [Conditionally using local toolchains] docs for how to configure.
-* (pypi) `RULES_PYTHON_ENABLE_PIPSTAR` environment variable: when `1`, the Starlark
-  implementation of wheel METADATA parsing is used (which has improved multi-platform
-  build support).
+* (pypi) Starlark-based evaluation of environment markers (requirements.txt conditionals)
+  available (not enabled by default) for improved multi-platform build support.
+  Set the `RULES_PYTHON_ENABLE_PIPSTAR=1` environment variable to enable it.
 
 {#v0-0-0-removed}
 ### Removed