Would love to help with the Go guide

Currently the course for Go just has titles, I would love to work upon adding code snippets for each and help in the content for each of the titles. Let me know if I can work upon this.

Locate the Go course and review how its existing titles are organized before deciding the scope of the content work. Done means each title has an appropriate code snippet and supporting instructional content, with the course structure remaining consistent.

由索引模型根据 Issue 内容生成。