Fix Network identifier example

[bigludo7]

What type of PR is this?

Add one of the following kinds:

• correction

What this PR does / why we need it:

Fix Network identifier example (domain --> example)

Which issue(s) this PR fixes:

Fixes #48

Special notes for reviewers:

Changelog input

 release-note
- Fix Network identifier example (domain --> example)

Additional documentation

This section can be blank.

docs

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	2		0	0.01s
✅ API	spectral	2		0	3.32s
✅ GHERKIN	gherkin-lint	2		0	0.74s
✅ REPOSITORY	git_diff	yes		no	0.0s
✅ REPOSITORY	secretlint	yes		no	0.67s
✅ YAML	yamllint	2		0	0.8s

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