Update README.md

Author: HaoUNSW

README.md

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 ## Introduction
 This repository is the reporisity of **PromptCast: A New Prompt-based Learning Paradigm for Time Series Forecasting** (currently under submission). PISA is a large-scale dataset including three real-world forecasting scenarios (three sub-sets) with 311,932 data instances in total. It is designed to support and facilitate the novel PromptCast task proposed in the paper. 
 
-## Updates
-
-***2022/06/10***
-This repo is open for review.
-
-
 
 ## Numerical Time Series Forecasting vs. PromptCast
 ![](resources/concept.png)