Update release notes with #275

Author: igaztanaga

doc/interprocess.qbk

@@ -6778,10 +6778,11 @@ thank them:
 [section:release_notes_boost_1_90_00 Boost 1.90 Release]
 
 * Minor documentation fixes
-*  Fixed bugs:
+* Fixed bugs:
    * [@https://github.com/boostorg/interprocess/pull/245   GitHub #245 (['"Fix UBSan runtime error (load of 'boost::interprocess::mode_t')"])].
    * [@https://github.com/boostorg/interprocess/pull/269   GitHub #269 (['"Minor documentation fixes and template parameter renames"])].
    * [@https://github.com/boostorg/interprocess/issues/272 GitHub #272 (['"Regression boost 1.87: offset_ptr conversion from void no longer works"])].
+   * [@https://github.com/boostorg/interprocess/pull/275   GitHub #275 (['"Allow injection of custom atexit procedure"])].
 
 [endsect]