Add 'use yum' advice notice for CentOS users

`dnf` is no longer available for CentOS 7 users. Advise users to use `yum` instead.
yanirq · Nov 9, 2017 · 3f4c829 · 3f4c829
1 parent da24c85
commit 3f4c829
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/developer_setup.md b/developer_setup.md
@@ -4,7 +4,7 @@
 
 #### Fedora / CentOS 7
 
-* CentOS only - Enable EPEL & install DNF
+* CentOS only - dnf is no longer available on CentOS7. In the examples below, replace dnf with yum
 
   ```bash
   sudo rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm