Stub documentation for some gRPC Core modules
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index e7fa25f..89915d7 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -921,7 +921,8 @@
 doc/statuscodes.md \
 doc/g_stands_for.md \
 doc/cpp/perf_notes.md \
-doc/cpp/pending_api_cleanups.md
+doc/cpp/pending_api_cleanups.md \
+src/cpp/README.md
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses