Documentation for ONNX export of Megatron Models

[asfiyab-nvidia]

What does this PR do ?

Adds documentation for ONNX export of Megatron Models

[ericharper]

Could you add this to index.rst so it shows up in the navigation pane?

[asfiyab-nvidia]

@ericharper would the docs/source/nlp/nemo_megatron be a better location for this file? I can then include it in the intro.rst under nemo_megatron

[ericharper]

I think it's better at a higher level

[ericharper]

I'm thinking below NeMo Megatron API:

[asfiyab-nvidia]

Added the change. Is that what you had in mind?

[ericharper]

Added the change. Is that what you had in mind?

That is a good change.

But also link docs/source/nlp/megatron_onnx_export.rst to the table of contents: docs/source/index.rst

.. toctree::
   :maxdepth: 3
   :caption: Natural Language Processing
   :name: Natural Language Processing

   nlp/nemo_megatron/intro
   nlp/machine_translation/machine_translation
   nlp/text_normalization/intro
   nlp/api
   nlp/models

[asfiyab-nvidia]

Ah I see, just included it in index.rst as well

[ericharper]

LGTM. Thank you!