ETR01SDK-484: Prepare tutorial on model

[andreondra]

Description

In this PR, I add an all-covering TLDR intro for new Libtropic/TROPIC01 users.

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• 🐛 Bug fix
• ✨ New feature
• 🧹 Code cleanup or refactoring
• 📝 Documentation update
• 🔧 Build system or toolchain update
• 🔒 Security improvement
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• I opened the Pull Request to the develop branch
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• The project builds without errors or warnings
• I have verified the functionality against the hardware/model as applicable
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