Typo in footnote when introducting RAG

[yf13]

Thanks a lot for the great PDF titled "foundations of LLMs" which I am still reading!

Just noticed that there might be a typo in this footnote:

Text: 
The RAG framework works as follows. We use the context x as the query and find the k most relevant document pieces {c1 , ..., ck } from the datastore via efficient IR techniques13 . ...

Footnotes:
13 In piratical applications, ...

Should here piratical be practical instead?

[xiaotong]

Hi, thank you for being interested in our work and pointing out this issue. We wil fix it.

Tong Xiao