Short-Term Reversal Strategy in Stocks Needs Updating

We updated [this tutorial](https://www.quantconnect.com/tutorials/strategy-library/short-term-reversal-strategy-in-stocks) in January and it was never posted to the site because we were waiting for Docs V2. When Docs V2 is merged, we should update the tutorial with [this write-up](https://docs.google.com/document/d/1R2DwXWgycGpRTEm3pUUJgQGPusk4Qv25aswiEs8Hhb0/edit?usp=sharing).