correct the nodejs version in docs, correct speling [SCT-1075]
correct the nodejs version in docs, correct speling [SCT-1075]

kbase/kbase-ui,briehl/kbase-ui,briehl/kbase-ui,eapearson/kbase-ui,kbase/kbase-ui,kbase/kbase-ui,eapearson/kbase-ui,eapearson/kbase-ui,eapearson/kbase-ui,kbase/kbase-ui,eapearson/kbase-ui,briehl/kbase-ui,kbase/kbase-ui