Update hextof tutorial notebook

[zain-sohail]

Mostly minor changes so that users on Maxwell don't end up downloading data when it's available in the public beamtimes. The user folder is only 30 GB.

I have opted to use non-default calibration file and put that as user_config keyword. I am not certain if this is the ideal way but this can be discussed

[coveralls]

Pull Request Test Coverage Report for Build 9583236814

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 91.962%

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Totals
Change from base Build 9572471667:	0.0%
Covered Lines:	6464
Relevant Lines:	7029

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9599766532

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 91.962%

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Totals
Change from base Build 9572471667:	0.0%
Covered Lines:	6464
Relevant Lines:	7029

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9599766183

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 91.962%

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Totals
Change from base Build 9572471667:	0.0%
Covered Lines:	6464
Relevant Lines:	7029

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💛 - Coveralls

[rettigl]

I don't like the change of the folder_config. and indeed it will not work as you intend if there is another sed_config.yaml in the current folder (e.g. if you run tutorial 2 before...)

[coveralls]

Pull Request Test Coverage Report for Build 9845689159

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 91.888%

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Totals
Change from base Build 9835772801:	0.0%
Covered Lines:	6457
Relevant Lines:	7027

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💛 - Coveralls

[rettigl]

LGTM