[PE-D][Tester B] `add` address validation may be too overzealous

[nus-pe-bot]

Steps: add n/ a p/ 12341234 a/ Serangoon 26 street wop up building Singapore 12345

Expected: Should be accepted as it contains the street, building and postal code. Actual: Wrong address format.

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Labels: severity.Medium type.FunctionalityBug original: beginner-web-developer/ped#1

[jialegitgud]

Cannot be changed this iteration, as such, should be noted as a known issue in the DG/UG instead.