Add optional_components to documentation

[trodge]

fixes b/284450505

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Release Note Template for Downstream PRs (will be copied)

[melinath]

optional_components LGTM. Could we please clean up the properties line as well since it is also related?

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 4 insertions(+))
Terraform Beta: Diff ( 1 file changed, 4 insertions(+))
TF Conversion: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 366 insertions(+), 362 deletions(-))
Terraform Beta: Diff ( 1 file changed, 366 insertions(+), 362 deletions(-))
TF Conversion: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 379 insertions(+), 362 deletions(-))
Terraform Beta: Diff ( 1 file changed, 379 insertions(+), 362 deletions(-))
TF Conversion: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))

[melinath]

LGTM

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 381 insertions(+), 362 deletions(-))
Terraform Beta: Diff ( 1 file changed, 381 insertions(+), 362 deletions(-))
TF Conversion: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))