Fix "Getting Started" translation for zh-CN

[core-ai-bot]

Issue by monstorix
Wednesday Jan 29, 2020 at 08:40 GMT
Originally opened as adobe/brackets#15024

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Fix the Simplified Chinese translation for Brackets Getting Started Project. The original translation directly used the traditional Chinese version, not in line with the usage habits of the China mainland.

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monstorix included the following code: https://github.com/adobe/brackets/pull/15024/commits