Update TODO.md
Update TODO.md

Note about `with_trashed` and softDelete
phroggyy/eloquent-sluggable,JeffreyVdb/eloquent-sluggable,cviebrock/eloquent-sluggable,kkiernan/eloquent-sluggable,EspadaV8/eloquent-sluggable,muratsplat/eloquent-sluggable,Bouhnosaure/eloquent-sluggable,dan-klasson/eloquent-sluggable,jakejohns/eloquent-sluggable