[clang] [Doc] Update documentation for no-transitive-change (PR #96453)

[Chuanqi Xu via cfe-commits]

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@@ -157,6 +157,13 @@ here. Generic improvements to Clang as a whole or to its underlying
 infrastructure are described first, followed by language-specific
 sections with improvements to Clang's support for those languages.
 
+- Clang implemented improvements to BMI of C++20 Modules that can reduce
+  the number of rebuilds during incremental recompilation. We are seeking
+  feedback from Build System authors and other interested users, especially
+  when you feel Clang changes the BMI and missses an opportunity to avoid
+  recompilations or causes correctness issues. See StandardCPlusPlusModules
+  `StandardCPlusPlusModules <StandardCPlusPlusModules.html>`_ for more details.
+
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ChuanqiXu9 wrote:

Done

https://github.com/llvm/llvm-project/pull/96453