Docs: Use MKDocs Content Tabs for Go/Java/Python examples

[th0ger]

Summary

As a Python developer it's a bit annoying that all SDK examples are in Go. Sometimes there are links to Python/Java examples, like Example in Golang

It would be really nice with MkDocs Content tabs to toggle between Go | Java | Python examples.

Especially linked content tabs would enable reader to change language for all examples with a single click.

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Message from the maintainers:

If you wish to see this enhancement implemented please add a 👍 reaction to this issue! We often sort issues this way to know what to prioritize.

[vigith]

related to #476