Fix code snip

[mguetta1]

1. Line number starts at 0 in the code editor. Should be 1
2. Unexpected question mark in the first line

[shawn-hurley]

This could be a problem in a couple of places: either in our code snippet generation, where the line numbers are not set, or in the source where the un-displayable character is coming from.

It could be that this is all in the analyzer or an issue in the UI.

Let's start here, validate the code snippet's output in the demo output, and if that looks correct, let's transfer this issue around until it finds the right home.