Clarify Versioning Format in Documentation

[channel101]

This pull request corrects inconsistencies in version formatting across the documentation.
It also fixes issues introduced earlier because changes were applied without proper testing or validation.

Summary

Previous updates mixed exact semantic versions (e.g., 0.73.0, 0.82.0) with caret-prefixed versions (e.g., ^0.73.0).
After verifying the actual behavior of the React Native CLI, this PR confirms:

👉 The only version that requires a caret prefix is ^0.75.0.

This correction ensures users can reliably follow setup instructions.

Changes

• Updated comments in docs/getting-started.md to use exact versions except where ^0.75.0 is required.
• Updated initialization examples in website/versioned_docs/version-0.82/getting-started.md to use explicit versions, removing unnecessary caret prefixes.
• Corrected the react-native-windows version examples to use explicit semantic versions.
• Verified all commands and examples to prevent the mistakes caused by previously untested updates.

Conclusion

• ^0.75.0 → caret prefix required
• All other versions → use exact semantic versions (e.g., 0.73.0, 0.82.0)

Notes

• Related Pr: Fix version in Getting Started documentation #1087
• This PR ensures correctness, consistency, and reproducibility—especially where earlier changes were applied without running actual tests.

Microsoft Reviewers: Open in CodeFlow