Few corrections to the quickstart documentation
Few corrections to the quickstart documentation

Signed-off-by: Bharat Kunwar <a737be61934fcfe00a0f6ebf8b2e3c6eb6e987e7@gmail.com>

cert-manager/cert-manager,jetstack-experimental/cert-manager,jetstack/cert-manager,jetstack/cert-manager,jetstack/cert-manager,cert-manager/cert-manager,cert-manager/cert-manager,jetstack-experimental/cert-manager,jetstack-experimental/cert-manager