Remove duplicated question about runlevels

Author: Vlad

README.md

@@ -183,7 +183,6 @@ A collection of linux sysadmin/devops interview questions. Feel free to contribu
 * What are cgroups? Can you specify a scenario where you could use them?
 * How can you remove/delete a file with file-name consisting of only non-printable/non-type-able characters?
 * How can you increase or decrease the priority of a process in Linux?
-* What are run-levels in Linux?
 
 
 #### [[⬆]](#toc) <a name='expert'>Expert Linux Questions:</a>