[] docs: fix a missing {{#internal}}.
[] docs: fix a missing {{#internal}}.

[] is currently blank, with JS error:

Uncaught Error: Unopened section "internal" at 13679

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=175721628

google/closure-templates,yext/closure-templates,google/closure-templates,Medium/closure-templates,yext/closure-templates,Medium/closure-templates,google/closure-templates,google/closure-templates,Medium/closure-templates,Medium/closure-templates,yext/closure-templates,google/closure-templates,Medium/closure-templates,yext/closure-templates