Update docc tutorial for v2.

[fabianfett]

Expected behavior

The docc tutorial should be updated for v2.

Actual behavior

N/A

Steps to reproduce

N/A

If possible, minimal yet complete reproducer code (or URL to code)

No response

What version of this project (swift-aws-lambda-runtime) are you using?

N/A

Swift version

N/A

Amazon Linux 2 docker image version

No response

[mikaelacaron]

Along with this issue, I noticed the code examples are backwards for two steps. In, Write your first Lambda function, section 2 steps 4 and 5, the code example for adding the product and target section, the code sample doesn't match the step

the step is about the target section, but the code is about products

the step is about the product, but the code is about targets

[sebsto]

Thank you @mikaelacaron
I will update the tutorial as soon as I can.
please référence to the code exemples and the readme for now.
let me know if you have any questions

[sebsto]

Tutorial is now updated for v2
See #450

The page on Swift Package Index will be updated within 24h

A preview is available here
https://sebsto.github.io/swift-aws-lambda-runtime/tutorials/table-of-content