message: Fix repeated "to to" in Specifying Dependencies
diff: @@ -173,7 +173,7 @@ dependencies but "libraries" do not.
  The desire to override a dependency or otherwise alter some dependencies can
  arise through a number of scenarios. Most of them, however, boil down to the
  -ability to to work with a crate before it's been published to crates.io. For
  +ability to work with a crate before it's been published to crates.io. For
  example:
  * A crate you're working on is also used in a much larger application you're
  