docs: fix links. fixes #279
Merge pull request #280 from stephenplusplus/spp--docs-link-fix

docs: fix links. fixes #279
docs: fix more links
readme: drive home the "service account" part.
Merge pull request #281 from stephenplusplus/spp--docs-link-fix

docs: fix more links
storage: use util.makeWritableStream
Merge pull request #276 from stephenplusplus/spp--storage-use-makeWritableStream

storage: use util.makeWritableStream
use google-service-account