document test invocation
document test invocation

Signed-off-by: Sergei Ianovich <a0f1490a20d0211c997b44bc357e1972deab8ae3@asutp.io>

sergeygaychuk/pcs-web,yanovich/pcs-web,sergeygaychuk/pcs-web,yanovich/pcs-web,yanovich/pcs-web,sergeygaychuk/pcs-web