v2 updates - Githubissues

Description

CityLearn v2.0.0 updated

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Please provide the issue number or link to the related issue, if applicable. None

Environment and docs updates.

Please list the changes introduced by this pull request. See change log.

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[x] I have tested the changes locally and they work as intended.
[x] I have updated the documentation, if applicable.
[ ] I have added new tests, if applicable.
[x] I have added any required dependencies to the requirements.txt file, if applicable.
[x] I have followed the project's code style and conventions.

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