[WIP] Add explanation of basic Go programming concepts

[Copilot]

• Enhance README.md with comprehensive Golang basics explanation
• Add basic syntax and data types examples
• Add control structures (if/else, loops) examples
• Add functions and methods examples
• Add structs and interfaces examples
• Add concurrency basics (goroutines and channels) examples
• Create example Go programs demonstrating the concepts
• Add a .gitignore file for Go projects
• Add documentation about running the examples

Original prompt

penjelasan golang basic

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[muris11]

golang basic