[JP] Correct the translation

[mai-nakagawa]

As is: もう一つはオーナーが持つゾンビをトラッキングするものだ
(another that keeps track of zombies an owner has.)

To be: もう一つはオーナーが持つゾンビの数をトラッキングするものだ
(another that keeps track of how many zombies an owner has.)

• I did these translations myself and own copyright for them
• I didn't use a machine to do these translations
• I assign all copyright to Loom Network for these translations

[lfcounago]

👍🏼