add missing results iterator

[maggiepint]

results iterator got removed from the sample at some point - put it back.

[opbld30]

Learn Build status updates of commit ab02254:

:warning: Validation status: warnings

File	Status	Preview URL	Details
docs-ref-services/preview/ai-text-analytics-readme.md	:warning:Warning	View (azure-node-preview)	Details

docs-ref-services/preview/ai-text-analytics-readme.md

• Line 2, Column 8: [Warning: duplicate-titles - See documentation] Title 'Azure Text Analysis client library for JavaScript' is duplicated in: 'docs-ref-services/preview/ai-language-text-readme.md(2,8), docs-ref-services/preview/ai-text-analytics-readme.md(2,8)'. Titles must be unique within a docset.
• Line 9, Column 13: [Warning: ms-service-subservice-invalid - See documentation] Invalid value for 'ms.service': 'textanalytics'.
• Line 2, Column 1: [Suggestion: description-missing - See documentation] Missing required attribute: 'description'.

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