Float modular credits

[nus-pe-bot]

Float credit field is not detected as a formatting error.

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_{[original: nus-cs2113-AY2122S2/pe-interim#48] [original labels: severity.Low type.FunctionalityBug]}

[heekit73098]

Team's Response

The error message though correct, could be refined further to match the error. However, given that the error message does correctly point out the error, and removing the excess argument would allow the user to add the module, the severity should be very low.

Duplicate status (if any):

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