Update guard-enable-control-flow-guard.md

[anporumb]

PR clarifies the options that need to be passed to both the linker and compiler in order to enable/disable CFG.

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[learn-build-service-prod]

Learn Build status updates of commit 8c9489e:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/build/reference/guard-enable-control-flow-guard.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

[learn-build-service-prod]

Learn Build status updates of commit 1c01727:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/build/reference/guard-enable-control-flow-guard.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

[prmerger-automator]

PRMerger Results

Issue	Description
File Change Percent	This PR contains file(s) with more than 30% file change.

[anporumb]

#sign-off

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Invalid command: '#sign-off'. Only the assigned author of one or more file in this PR can sign off. @TylerMSFT

[TylerMSFT]

#sign-off