correcting prereq links for self paced and AWS event

[ngwmddgh]

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Issue #, if available:
#43

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Description of changes:
closes #43

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[ngwmddgh]

closes #43

[ngwmddgh]

The workshop instructions reference opening one file and saving to another. To correctly make changes, the file to save to is the same one to begin with.

[luistkd4]

Hi @ngwmddgh
First of all sorry for delayed answer, but it's for a good news.. The workshop was updated/migrated with a lot of fixes, you can find it here.
Thank for your help!