Fix minor UI inconsistencies in "Your First Project" parts 1 & 2

[muhsinking]

Fixes minor inconsistencies between the tutorial steps and the UI.

I haven't managed to get part 3 working yet—testing the connection appears to be successful, but it never progresses past defer machine.Close(ctx). Here's the output:

Might be misconfiguration, or just a lack of Go experience on my part :) Either way, I'd recommend creating a GitHub repo with the completed module code for users can clone (and linked it at the top of part 3), to ensure that users can move on to part 4 no matter what!

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