[doc] Fix a broken link to `ProtoReflectionDescriptorDatabase` (#35204)
Closes #35204
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35204 from y-yagi:patch-1 7c5d9e6fa6e906fd84fac5abe33fce1b9cc7ad7a
PiperOrigin-RevId: 591176455
diff --git a/doc/python/server_reflection.md b/doc/python/server_reflection.md
index b82f304..3e7fea6 100644
--- a/doc/python/server_reflection.md
+++ b/doc/python/server_reflection.md
@@ -54,7 +54,7 @@
Server Reflection can be used by clients to get information about gRPC services
at runtime. We've provided a descriptor database called
-[ProtoReflectionDescriptorDatabase](../../src/python/grpcio_reflection/v1alpha/proto_reflection_descriptor_database.h)
+[ProtoReflectionDescriptorDatabase](../../src/python/grpcio_reflection/grpc_reflection/v1alpha/proto_reflection_descriptor_database.py)
which implements the
[DescriptorDatabase](https://googleapis.dev/python/protobuf/latest/google/protobuf/descriptor_database.html#google.protobuf.descriptor_database.DescriptorDatabase)
interface. It manages the communication between clients and reflection services
