docs(Hub): Remove author
docs(Hub): Remove author

Adding author appeared to be responsible for this error: https://github.com/stencila/stencila/runs/1323712343?check_suite_focus=true#step:5:84

stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila