Merge pull request rust-lang#2500 from rust-lang/tshepang-patch-3

do not invent a name

Author: Noratrieb

src/tests/intro.md

@@ -111,7 +111,7 @@ and it can be invoked so:
 
 This requires building all of the documentation, which might take a while.
 
-### Dist check
+### `distcheck`
 
 `distcheck` verifies that the source distribution tarball created by the build
 system will unpack, build, and run all tests.