Read the Docs no longer injects html_baseurl: update test and comment#138

AA-Turner merged 1 commit intosphinx-doc:0.xsphinx-doc/sphinxext-opengraph:0.xfrom

m-aciek:fix-test-rtd-validm-aciek/sphinxext-opengraph:fix-test-rtd-validCopy head branch name to clipboard