[Add] #TITLE explanation

[nus-pe-bot]

Note from the teaching team: This bug was reported during the Part II (Evaluating Documents) stage of the PE. You may reject this bug if it is not related to the quality of documentation.

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Instead of "next line," should use "next non-empty line"

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_{[original: nus-cs2113-AY2223S1/pe-interim#753] [original labels: severity.VeryLow type.DocumentationBug]}

[Than-Duc-Huy]

Team's Response

Does not affect the quality of the documentation

Duplicate status (if any):

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