docs: show how to change default data model naming convention

[jonaslagoni]

Description
As I was changing the naming convention for data models in #478, I need to be able to show how it can be changed.

Related issue(s)
Fixes #415

[jonaslagoni]

Blocked by #478

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[coveralls]

Pull Request Test Coverage Report for Build 1409139859

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.149%

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Totals
Change from base Build 1405178337:	0.0%
Covered Lines:	2264
Relevant Lines:	2311

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💛 - Coveralls

[github-actions]

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[jonaslagoni]

With the new MetaModel, I will recreate this.