yum has been replaced with dnf as of f22

https://fedoraproject.org/wiki/Changes/ReplaceYumWithDNF

docs/content/2.download/default.yml

@@ -22,7 +22,7 @@ body:
 
        * jq 1.5 is in the official
          [Fedora](http://pkgs.fedoraproject.org/cgit/jq.git/) repository.
-         Install using `sudo yum install jq`.
+         Install using `sudo dnf install jq`.
 
        * jq 1.4 is in the official [openSUSE](https://software.opensuse.org/package/jq)
          repository. Install using `sudo zypper install jq`.