docs(readme): update latest news

[sbhavani]

Description

Add recent TE-related items to the README Latest News section.

Fixes # (issue)

Type of change

• Documentation change (change only to the documentation, either a fix or a new content)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Infra/Build change
• Code refactoring

Changes

Includes new references for Nemotron 3 Ultra, JAX/MaxText NVFP4 training on Blackwell, FP8 reinforcement learning training, and NVFP4 low-precision model training.

Checklist:

• I have read and followed the contributing guidelines
• The functionality is complete
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[greptile-apps]

Greptile Summary

This PR adds five new entries to the "Latest News" section of README.rst, covering blog posts and technical reports published between February and June 2026.

• Entries for Nemotron 3 Ultra, JAX/MaxText NVFP4 Blackwell training, FP8 reinforcement learning, NVFP4 low-precision training, and MoE fusion kernels are added in correct reverse-chronological order.
• All new items follow the established RST hyperlink format (\Title `_`) and link to official NVIDIA developer or research domains.

Confidence Score: 5/5

Safe to merge — only README news links are changed, with no impact on code, tests, or builds.

The change is limited to five new bullet points in the documentation news section. All entries match the existing RST format, dates are in reverse-chronological order, and the URLs point to official NVIDIA developer and research domains. There is nothing here that could break functionality.

No files require special attention.

Important Files Changed

Filename	Overview
README.rst	Adds 5 new "Latest News" entries (02/2026–06/2026) following existing RST link format; dates are in correct reverse-chronological order and all URLs point to NVIDIA/research domains.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[README.rst Latest News] --> B["[06/2026] Boosting MoE Training Throughput"]
    A --> C["[06/2026] Nemotron 3 Ultra Technical Report"]
    A --> D["[06/2026] JAX/MaxText NVFP4 on Blackwell"]
    A --> E["[04/2026] FP8 Reinforcement Learning Training"]
    A --> F["[02/2026] NVFP4 Low-Precision Model Training"]
    A --> G["[12/2025] NVIDIA Nemotron 3 (existing)"]
    A --> H["[...] Earlier entries (existing)"]

    style B fill:#c8f7c5
    style C fill:#c8f7c5
    style D fill:#c8f7c5
    style E fill:#c8f7c5
    style F fill:#c8f7c5
    style G fill:#f0f0f0
    style H fill:#f0f0f0

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_{Reviews (3): Last reviewed commit: "docs(readme): update latest news" | Re-trigger Greptile}