docs: standize recent addition to changelog

Signed-off-by: Henry Schreiner <[email protected]>

Author: henryiii

docs/changelog.md

@@ -8,17 +8,13 @@ A quick fix for macOS universal2 tags not expanding when enabled.
 
 Fixes:
 
-- Expand macos tags missing by @henryiii in
-  https://github.com/scikit-build/scikit-build-core/pull/105
+- Expand macos tags missing by @henryiii in #105
 
 Other things:
 
-- Add tests marker for PEP 518 by @henryiii in
-  https://github.com/scikit-build/scikit-build-core/pull/104
-- Require C++11 only in tests by @henryiii in
-  https://github.com/scikit-build/scikit-build-core/pull/106
-- Xfail a non-important test by @henryiii in
-  https://github.com/scikit-build/scikit-build-core/pull/107
+- Add tests marker for PEP 518 by @henryiii in #104
+- Require C++11 only in tests by @henryiii in #106
+- Xfail a non-important test by @henryiii in #107
 
 **Full Changelog**:
 https://github.com/scikit-build/scikit-build-core/compare/v0.1.0b1...v0.1.0b2