Add the sample code from `samples/run_sample.sh` to `samples/README.md`

[tungbq]

Add sample code for kubectl and helm from

devops-toolkit/samples/run_sample.sh

Line 36 in 267b333

# Kubectl

to https://github.com/tungbq/devops-toolkit/blob/main/samples/README.md#kubectl (replace the TODO)

[Chrisgr1]

Hi Tung, Xin Chao
I am looking to gain experience as a devOps engineer. Can I help you with your project?

Best,
Chris

[tungbq]

Hi Tung, Xin Chao I am looking to gain experience as a devOps engineer. Can I help you with your project?

Best, Chris

Hi Chris @Chrisgr1 , Xin Chao ❤️
Yes, surely, welcome to this project. Feel free to find a ticket that you interest and work on it. Thanks.
This could be the first start one, I've just assigned it to you

[Chrisgr1]

Thanks Tung!

[tungbq]

Hi @adiltamboli12 thanks for your PR #130. It's really nice, I appreciate your contribution in this repository.
Just would like to close it as @Chrisgr1 has already been assigned the ticket before your PR.
So, I would prefer using the PR from @Chrisgr1 (#132) instead of #130. I hope you could understand this situation. Thanks!

Again, thanks for your contribution! If you want to contribute more on this repo, you could find other good first issue to work on. Thanks!

[adiltamboli12]

its very nice to hear from you. I am new here that why i did this and thanks for guiding me i want to contribute and i try to do contribution as much as a i can. thank @tungbq