e2e test - hello world doc issue and failure

[ajssmith]

Describe the bug
The README.md suggests how to create kind cluster, but issue with relative path in scripts

also

WARNING in tests/roles/generate_namespaces/tasks.main.yaml
[WARNING]: Found variable using reserved name 'namespace'.
Test then faild

How To Reproduce
Follow README to execute e2e hello-world test

Expected behavior
Test passes

Environment details

• Platform: [e.g kubernetes]