Update lesson_54.md with an optional group discussion#441
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druttka wants to merge 1 commit intoTEALSK12:masterfrom
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Update lesson_54.md with an optional group discussion#441druttka wants to merge 1 commit intoTEALSK12:masterfrom
druttka wants to merge 1 commit intoTEALSK12:masterfrom