Update bitcoin_zh_CN.ts

Changed "红币“ to "红迪币"

The first refers to Redcoin (RED), which is a competitor. Reddcoin (RDD) should have it's own distinctive name. The proposed translation is based on the Chinese name for Reddit "红迪网".
Merge pull request #3 from Sebsebzen/patch-1

Change Chinese translation from "红币“ to "红迪币"