Fix: wrap inline literals (#1050)

This preservers white spaces as is when copying,
so all good.

Fixes #321

Author: stsewd

sphinx_rtd_theme/static/css/theme.css

@@ -376,6 +376,7 @@
 
     &.literal
       color: $text-code-color
+      white-space: normal
     &.xref, a &
       font-weight: bold
       color: $text-codexref-color