Documentation: Add EPEL url.

diff --git a/doc/2.1-setting-up-icinga-2.md b/doc/2.1-setting-up-icinga-2.md
index c4280f3e795e3b2eb8a7a3bb2c2a0e932764ab43..3720c000407e2aaa58cda9b3eb4faee0250e007e 100644 (file)
--- a/doc/2.1-setting-up-icinga-2.md
+++ b/doc/2.1-setting-up-icinga-2.md
@@ -19,9 +19,9 @@ are available for your favorite distribution.
 
 > **Note**
 >
-> RHEL/CentOS 5 packages require the EPEL repository enabled (which provides the
-> `boost141` package). SLES 11 SP3 and older versions require the `boost_1_54_0`
-> package (available on packages.icinga.org).
+> RHEL/CentOS 5 packages require the [EPEL repository](http://fedoraproject.org/wiki/EPEL)
+> enabled (which provides the `boost141` package). SLES 11 SP3 and older versions
+> require the `boost_1_54_0` package (available on [packages.icinga.org]).
 
 You can install Icinga 2 by using your distribution's package manager
 to install the `icinga2` package.