Updated minor grammar error (#1041)

"an history" -> "a history"
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Luke Fisher 2022-08-31 12:04:15 -04:00 committed by GitHub
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@ -185,7 +185,7 @@ Some basic advice:
Two important things to keep in mind when creating a custom environment is to avoid breaking Markov assumption
and properly handle termination due to a timeout (maximum number of steps in an episode).
For instance, if there is some time delay between action and observation (e.g. due to wifi communication), you should give an history of observations
For instance, if there is some time delay between action and observation (e.g. due to wifi communication), you should give a history of observations
as input.
Termination due to timeout (max number of steps per episode) needs to be handled separately. You should fill the key in the info dict: ``info["TimeLimit.truncated"] = True``.