Add link to final ReferenceUnion migration commit in Developing doc

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=139219744
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mcilwain 2016-11-15 10:47:48 -08:00 committed by Ben McIlwain
parent fb47d2563d
commit e0dbc1cb12

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@ -89,4 +89,6 @@ objects is instructive as an example:
* [Step
4](https://github.com/google/nomulus/commit/361a53a3c985c14539e5ec1a31cf4ad192f67a5d),
which switches over to using the new fields.
* Step 6, which removes the old fields (work pending).
* [Step
6](https://github.com/google/nomulus/commit/780a5add78e735589f25f736059c29e9faf9aef5),
which removes the old fields.