README portuguese Brazil version

[YlanzinhoY]

In Brazil we are quickly adopting Go for new services and I believe that kitex can be used, I am now creating the readme in Brazilian Portuguese but I also want to translate the documentation in the future.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[GuangmingLuo]

Hello, thanks for your PR and attention. As for the PR, I prefer not to merge it. Adding a new version of Readme will increase the cost of maintaining. If you want to share this project to more Brazilian, I would suggest to use AI for translation. If they want to read the code, English is a must.