fix typo

[ParsifalC]

• 中英文排版问题
• 错别字
• 部分翻译问题
• 代码格式

[faisalmemon]

I've noticed you've made the markdown verbose sections language specific such as: three back-ticks and then objectivec (```objectivec)

I just need to check my markdown_fold program still works with this (it automatically wraps long lines for the print version of the book). I also need to port that enhancement back to the English version.

I won't be able to do this work until later on in the week.

In the meantime, thank you for the update proposal; I really appreciate the collaboration from you on this.

[ParsifalC]

I've noticed you've made the markdown verbose sections language specific such as: three back-ticks and then objectivec (```objectivec)

I just need to check my markdown_fold program still works with this (it automatically wraps long lines for the print version of the book). I also need to port that enhancement back to the English version.

I won't be able to do this work until later on in the week.

In the meantime, thank you for the update proposal; I really appreciate the collaboration from you on this.

yeah,u can try (```oc) or (```objective-c) if (```objectivec) not works.it just depends on different MarkDown renders.it's easier to read with these highlights.

[ParsifalC]

• 中英文排版问题
• 错别字
• 部分翻译问题
• 代码格式

@LoneyIsError thanks for the review of Chinese part.

[LoneyIsError]

@ParsifalC Strive to make the translated content more accurate. I will proofread it every once in a while. I hope that more people can participate and make the Chinese version more perfect.

[LoneyIsError]

@ParsifalC If you want, you can communicate with me on WeChat