Add "Remarks" heading and clean up AddressSanitizer error references

[Rageking8]

Add "Remarks" heading (to match the structure of error references) and clean up superfluous ./ link prefix.

[prmerger-automator]

@Rageking8 : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

[learn-build-service-prod]

Learn Build status updates of commit 764ef4e:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/sanitizers/error-alloc-dealloc-mismatch.md	✅Succeeded
docs/sanitizers/error-allocation-size-too-big.md	✅Succeeded
docs/sanitizers/error-calloc-overflow.md	✅Succeeded
docs/sanitizers/error-container-overflow.md	✅Succeeded
docs/sanitizers/error-double-free.md	✅Succeeded
docs/sanitizers/error-dynamic-stack-buffer-overflow.md	✅Succeeded
docs/sanitizers/error-global-buffer-overflow.md	✅Succeeded
docs/sanitizers/error-heap-buffer-overflow.md	✅Succeeded
docs/sanitizers/error-heap-use-after-free.md	✅Succeeded
docs/sanitizers/error-invalid-allocation-alignment.md	✅Succeeded
docs/sanitizers/error-memcpy-param-overlap.md	✅Succeeded
docs/sanitizers/error-new-delete-type-mismatch.md	✅Succeeded
docs/sanitizers/error-stack-buffer-overflow.md	✅Succeeded
docs/sanitizers/error-stack-buffer-underflow.md	✅Succeeded
docs/sanitizers/error-stack-use-after-return.md	✅Succeeded
docs/sanitizers/error-stack-use-after-scope.md	✅Succeeded
docs/sanitizers/error-strncat-param-overlap.md	✅Succeeded
docs/sanitizers/error-use-after-poison.md	✅Succeeded

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[prmerger-automator]

PRMerger Results

Issue	Description
Changed Files	This PR contains more than 10 changed files.
File Change Percent	This PR contains file(s) with more than 30% file change.

[v-dirichards]

@TylerMSFT

Can you review the proposed changes?

Editorial changes LGTM

Important: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[TylerMSFT]

#sign-off