router.js中在title里设置多语言字段不生效的问题

文档的例子是meta：{title：‘{{more}}’}，但是这样写路由中切换语言不会生效。我看了util.js中是对meta.title进行typeof为function的检测，经测试发现，项目中的多语言例子：将单引号‘’改为上点``，设置多语言字段即可生效

Start by comparing the documentation example using meta.title with the handling in router.js and the typeof check in util.js. Reproduce a language switch with the documented quote style and with backticks; done means the documented multilingual title works when switching languages, or the documentation clearly reflects the supported syntax.

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