Update README.md with note about app size increase for project with different ndk configuration

[hieuwu]

ℹ️ Description

Update explanation for APK size increase when add the library into current project with ndk configuration with the detailed analysis at detailed in issue page

Issue #654

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
  • README update
  • CHANGELOG update
  • guides update
• This change requires a dependency update
  • Amazon Chime SDK Media
  • Other (update corresponding legal documents)

🧪 How Has This Been Tested?

Use APK Analyzer to see the details of .so files in APK file

Unit test coverage

• Class coverage:
• Line coverage:

Additional Manual Test

• Pause and resume remote video
• Switch local camera
• Rotate screen back and forth

📱 Screenshots, if available

N/A

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.