Fix some broken links.

Author: ehuss

src/conversion/try_from_try_into.md

@@ -5,7 +5,7 @@ generic traits for converting between types. Unlike `From`/`Into`, the
 `TryFrom`/`TryInto` traits are used for fallible conversions, and as such,
 return [`Result`]s.
 
-[from-into]: conversion/from_into.html
+[from-into]: from_into.html
 [`TryFrom`]: https://doc.rust-lang.org/std/convert/trait.TryFrom.html
 [`TryInto`]: https://doc.rust-lang.org/std/convert/trait.TryInto.html
 [`Result`]: https://doc.rust-lang.org/std/result/enum.Result.html

src/fn/closures/output_parameters.md

@@ -1,8 +1,8 @@
 # As output parameters
 
-Closures as input parameters are possible, so returning closures as 
-output parameters should also be possible. However, anonymous 
-closure types are, by definition, unknown, so we have to use 
+Closures as input parameters are possible, so returning closures as
+output parameters should also be possible. However, anonymous
+closure types are, by definition, unknown, so we have to use
 `impl Trait` to return them.
 
 The valid traits for returns are slightly different than before:
@@ -46,6 +46,6 @@ fn main() {
 
 [fn]: https://doc.rust-lang.org/std/ops/trait.Fn.html
 [fnmut]: https://doc.rust-lang.org/std/ops/trait.FnMut.html
-[fnbox]: https://doc.rust-lang.org/std/boxed/trait.FnBox.html 
+[fnbox]: https://doc.rust-lang.org/std/boxed/trait.FnBox.html
 [generics]: ../../generics.md
-[impltrait]: ../../traits/impl_trait.md
+[impltrait]: ../../trait/impl_trait.md