Add testnet UID to top level README

README.md

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 # **Bittensor SN28 - S&P 500 Oracle**
 
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+| This repository is the official codebase<br>for Bittensor Subnet 28 (SN28) v1.0.0+,<br>which was released on February 20th 2024. | **TestNet UID:**  93 <br> **MainNet UID:**  28 |
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 | **Status** | <img src="https://img.shields.io/github/v/release/foundryservices/snpOracle?label=Release" height="25"/> <img src="https://img.shields.io/github/actions/workflow/status/foundryservices/snpOracle/ci.yml?label=Build" height="25"/> <br> <a href="https://github.com/pre-commit/pre-commit" target="_blank"> <img src="https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit&logoColor=white&label=Pre-Commit" height="25"/> </a> <a href="https://github.com/psf/black" target="_blank"> <img src="https://img.shields.io/badge/code%20style-black-000000.svg?label=Code%20Style" height="25"/> </a> <br> <img src="https://img.shields.io/github/license/foundryservices/snpOracle?label=License" height="25"/> |
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 </div>
 
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-This repository is the official codebase for Bittensor Subnet 28 (SN28) v1.0.0+, which was released on February 20th 2024.
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-|     | UID |
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-| TestNet | 93 |
-| MainNet | 28 |
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 ## Introduction
 
 Foundry Digital is launching the Foundry S&P 500 Oracle. This subnet incentivizes accurate short term price forecasts of the S&P 500 during market trading hours.
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 #### Adversarial Environment
 The adversarial environment, especially given the rewards mechanism, will allow for significant diversity of models. Miners will be driven to acquire different datasets, implement different training methods, and utilize different Neural Network architectures in order to develop the most performant models.
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