Add 2 Vietnamese Go courses by Code With Tuan

[tontnm]

What does this PR do?

Add two courses from the "Code With Tuan" YouTube channel to the Vietnamese course list.

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For resources

Description

This PR added 2 Go courses from "Code With Tuan" channel.

Why is this valuable (or not)?

• First course thoroughly guides you from the fundamental elements of the Go Programming language concepts such as variable, module, package, if, switch, break, continue, pointer, context, error handling, struct, method, function, tag, interface, generics, array, slice, map, concurrency, parallelism, go routine, channel with practical assignment and more. It helps you build a solid foundation in Go.
• Second course Master RESTful API with Golang and Gin thoroughly guides you from the advanced topics of the Web development such as restful api, api, http, json, crud, gin, router, middleware, validation, file handling, rate limiting, logging, lumberjack, dependency injection, dto pattern, postgresql, docker, docker compose, pgx, sqlc, migrate, gorm, grateful shutdown, panic, recovery, gzip compression, redis cache, cors, jwt, authentication, rabbitmq, grafana with practical assignment and more. It helps you build a solid knowledge with Go.

The courses are designed to help learners start working as Go developers.

How do we know it's really free?

Yes, they are completely free and publicly published on YouTube by the author.

For book lists, is it a book? For course lists, is it a course? etc.

It is a course.

Checklist:

• Search for duplicates.
• Include author(s) and platform where appropriate.
• Put lists in alphabetical order, correct spacing.
• Add needed indications (PDF, access notes, under construction).
• Used an informative name for this pull request.

Follow-up

• Check the status of GitHub Actions and resolve any reported warnings!

[github-actions]

Linter failed, fix the error(s):

free-programming-books/courses/free-courses-vi.md
246:1-256:150  warning  Alphabetical ordering: swap l.252 and l.251  alphabetize-lists  remark-lint

[eshellman]

we also don't like ALL CAPS titles