Érico Rolim 78aa2a16f8 Mention that uninstalled backend isn't marked optional. ... If an uninstalled backend (command not found) isn't marked optional, warn about it, since it causes mdbook commands to error out. Fixes #1283		2020-07-28 18:08:32 -03:00
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src	Mention that uninstalled backend isn't marked optional.	2020-07-28 18:08:32 -03:00
book.toml	Merge pull request #1221 from manuel-woelker/fb-539-not-found-page	2020-06-23 10:48:08 -07:00