docs: few minor fixes.

[spacemiqote]

Hi! I hope you are having a great day.
I am submitting a pull request with the following changes:

1. Updated explanation to align with code and fix a minor grammar mistake in the documentation related to C Bit Fields. 1cfca66
2. Clarify the description regarding the default size in the documentation related to Storage and Alignment of Structures. 532242a
3. Fix a comment formatting error in the documentation related to Union Declarations. f92be36

Thank you for your time and consideration in reviewing these changes.
Best regards,
melody

[prmerger-automator]

@moonlit-melody : Thanks for your contribution! The author(s) have been notified to review your proposed change.

[learn-build-service-prod]

Learn Build status updates of commit f92be36:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/c-language/c-bit-fields.md	✅Succeeded
docs/c-language/storage-and-alignment-of-structures.md	✅Succeeded
docs/c-language/union-declarations.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[TylerMSFT]

Thanks, @moonlit-melody! I think we should tweak the description of how many bits can be in the bit field.

[learn-build-service-prod]

Learn Build status updates of commit 1cfca66:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/c-language/c-bit-fields.md	✅Succeeded
docs/c-language/storage-and-alignment-of-structures.md	✅Succeeded
docs/c-language/union-declarations.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[TylerMSFT]

Thanks, @moonlit-melody!

[TylerMSFT]

#sign-off