Add examples/ in the repo

We could add around 5-10 common usage examples in examples/ directory with this format

file - descriptive_name.go

content -

<go code>
/* 
<Detailed explanation of what program does if needed>

<Equivalent shell script>
*/

• Makes it easy for new users to understand the API
• Makes it easy for users to implement a solution for them, by providing them a reference of real world use cases
• It allows providing larger examples that cannot fit in ReadMe
• It allows providing more examples, as Readme cannot fit too many examples.
• Its standard practive

Bonus

• We could add some sort of check in GitHub Actions to ensure all examples runs. That will be a good intergeration test.