[Proposal] Adding supporting docs for E2E test development under development guide

## Describe the proposal
1. Right now under the `cli/development.md` we do not have a supporting guide to run the E2E test. This includes maybe the command used to run the individual test because to run E2E tests one needs to add --tags=e2e while running the command and it looks something like `go test --tags=e2e ./test/e2e/... -run NameOfTest` which is different from how one runs unit tests. Additionally one has to build the project using `make build` command before running the E2E test as it requires the binary to be in `dist/darwin_arch/release` folder. Now this might be non-intuitive to a new contributor.
2. Also while contributing or making changes to the E2E test, I had to add some environment variables for example in my case I was working on `tests/e2e/standalone/uninstall_test.go` which requires the addition of two environment variables `DAPR_DASHBOARD_PINNED_VERSION` and `DAPR_RUNTIME_PINNED_VERSION`. Now this was discovered while dry-running the code to navigate to a function where on the comment it is written that we need to add these variables as environment variables, otherwise, the test run fails. Although I do understand that the error message while tests failed was accurate in describing where the issue is and it clearly mentioned that `DAPR_RUNTIME_PINNED_VERSION` variable was not set. However, for someone new to the code base it would not make sense as to what the value should be of the given variable `DAPR_RUNTIME_PINNED_VERSION` or why it needs to be added.

The proposal is to add some supporting docs at least with basic details under `deployment.md` or at some other appropriate location.

## My Setup

I was having docker installed on Mac machine. I built the code using `make build` and used the binary in the `dist/darwin_arch/release` folder to run `dapr init`. This did not automatically set the environment variables `DAPR_DASHBOARD_PINNED_VERSION` and `DAPR_RUNTIME_PINNED_VERSION` required to run the E2E test.