Redundant example for `random`.

[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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The example of random is not necessary as it is exactly the same as the format. This might make UG unnecessarily long.

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_{[original: nus-cs2103-AY1920S2/pe-interim#2604]}

[terencemah]

Team's Response

The example was given to explicitly show users how the command would be used.

Duplicate status (if any):

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