Doc: Installation using a minikube cluster in Readme

[Kanika637]

💭 Description

I think we should have a section on installation using the minikube cluster in the Readme.md file. As a minikube user, I myself got some issues and could not install Devtron in the first go using the previously written steps.
There are some steps which are subjected only for a minikube user Eg: for accessing the URL, an external IP address is required with a minikube tunnel in process.

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

[Kanika637]

If valid, I would like to work on this issue

[prakarsh-dt]

Hi @Kanika637
We have a separate documentation page for minikube https://docs.devtron.ai/getting-started/install/install-devtron-on-minikube-microk8s-k3s-kind

Is that something you wanted? Do you see some scope to enhance that?

[Kanika637]

No actually @prakarsh-dt, the documentation is appropriate, I just wanted to have this section in the Readme as well.

[prakarsh-dt]

Sure, please go ahead. However, please ensure that it's not too loud in the Readme.

[Kanika637]

Will take care of that @prakarsh-dt.

[Kanika637]

Have made the PR

[ashokdevtron]

Closing this PR. Steps are enhanced and no longer the way they were a year ago.
And closing the linked PR too: #2566

New PR: #4477