Amend #344, correct spacing on line-numbering (#382)
Amend #344, correct spacing on line-numbering (#382)

Closes #381
snide/sphinx_rtd_theme,mitya57/sphinx_rtd_theme,mitya57/sphinx_rtd_theme,snide/sphinx_rtd_theme,mitya57/sphinx_rtd_theme,mitya57/sphinx_rtd_theme,snide/sphinx_rtd_theme,snide/sphinx_rtd_theme