Update and format package-level comments.

[nicolaasuni-vonage]

Description

• Update and format package-level comments.
• Fix style and grammar in the README.md.

Checklist:

• The make x command has been run successfully without any error or warning.
• Any new code line is covered by unit tests and the coverage has not dropped.
• Any new code follows the style guidelines of this project.
• The code changes have been self-reviewed.
• Corresponding changes to the documentation have been made.
• The version has been updated in the VERSION and examples/service/go.mod files.

Type of change:

• Minor non-breaking change (e.g., bug fix, dependencies updates) → The patch number in the VERSION file has been increased.
• New feature (non-breaking change which adds functionality) → The minor number in the VERSION file has been increased.
• Breaking change (fix or feature that would cause existing functionality to not work as expected) → This requires a major version release.
• Dependencies.
• Automation.
• Documentation.
• Examples.
• Testing.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[coveralls]

Pull Request Test Coverage Report for Build 9939470069

Details

• 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 100.0%

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Totals
Change from base Build 9906297170:	0.0%
Covered Lines:	6212
Relevant Lines:	6212

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💛 - Coveralls