Fix typo

Signed-off-by: Sandro Jäckel <sandro.jaeckel@gmail.com>
(cherry picked from commit 2725f09873)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

docs/reference/commandline/run.md

@@ -719,7 +719,7 @@ $ docker run --ulimit nofile=1024:1024 --rm debian sh -c "ulimit -n"
 > In other words, the following script is not supported:
 >
 > ```console
-> $ docker run -it --ulimit as=1024 fedora /bin/bash`
+> $ docker run -it --ulimit as=1024 fedora /bin/bash
 > ```
 
 The values are sent to the appropriate `syscall` as they are set.