Another wrong figure naming

[GabrielSimbingyang]

figure should be 9.2 not 9.1

[nus-se-bot]

Team's Response

Severity changed to very low because there is no referrence to the diagram and it does not break the readability of the documentation.

Thanks, fixed!

Items for the Tester to Verify

❓ Issue severity

Team chose [severity.VeryLow]
Originally [severity.Medium]

• I disagree

Reason for disagreement: [replace this with your reason]

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