chore: Improve Documentation (RMCCX-6705)

[SoumenRautray]

Description

Describe the changes in this pull request.
Explain your rationale of technical decisions you made (unless discussed before).

Links

Add public links to github issues, design documents and other relevant resources (e.g. previous discussions, platform/tool documentation etc.)

Checklist

• I have read the contributing guidelines
• I have added to the changelog
• I wrote/updated tests for new/changed code
• I removed all sensitive data before every commit, including API endpoints and keys, and internal links
• I ran fastlane ci without errors
• All project file changes are replicated in SampleSPM/SampleSPM.xcodeproj project

[sonarcloud]

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

[rakutentech-danger-bot]

	4 Warnings
⚠️	This PR does not have any assignees yet
⚠️	Branch name "userGuideUpdate" should match format: <type>/<ticket-no>_<short-desc> or <type>/<short-desc> or release/<version or desc>
⚠️	Commit message "chore: remove push Primer from IAM since its included in rmc-iam (RMCCX-6705)" should append ticket number(s) e.g. (SDKCF-1234, SDKCF-1235)
⚠️	Commit message "chore: Improve Documentation (RMCCX-6705)" should append ticket number(s) e.g. (SDKCF-1234, SDKCF-1235)

Current coverage for RInAppMessaging.framework is 90.07%

✅ No files affecting coverage found

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