Update README.md

README.md

@@ -16,6 +16,9 @@ We recorded all letter keys on the qwert keyboard from upper left Q to lower rig
 
 There is an issue with episode 5 (letter T).
 
+One episode is one letter. The episode starts in an arm position where the whole keyboard should be visible comfortably. We then go down to the letter ... slightly above it ... then go down to press it ... hold it pressed for some seconds ... then lift the arm back roughly to the start position ... episode ends.
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 This dataset was created using [LeRobot](https://github.com/huggingface/lerobot).