Merge pull request #3025 from utkarshcmu/docs

Added OpenSuse documentation

docs/sources/installation/rpm.md

 ---
 page_title: Installing on RPM-based Linux
-page_description: Grafana Installation guide for Centos, Fedora, Redhat.
+page_description: Grafana Installation guide for Centos, Fedora, OpenSuse, Redhat.
 page_keywords: grafana, installation, centos, fedora, opensuse, redhat, guide
 ---
 
@@ -10,7 +10,7 @@ page_keywords: grafana, installation, centos, fedora, opensuse, redhat, guide
 
 Description | Download
 ------------ | -------------
-.RPM for Fedora / RHEL / CentOS Linux | [grafana-2.1.3-1.x86_64.rpm](https://grafanarel.s3.amazonaws.com/builds/grafana-2.1.3-1.x86_64.rpm)
+.RPM for CentOS / Fedora / OpenSuse / Redhat Linux | [grafana-2.1.3-1.x86_64.rpm](https://grafanarel.s3.amazonaws.com/builds/grafana-2.1.3-1.x86_64.rpm)
 
 ## Install from package file
 
@@ -20,9 +20,15 @@ You can install Grafana using Yum directly.
 
 Or install manually using `rpm`.
 
+#### On CentOS / Fedora / Redhat:
+
     $ sudo yum install initscripts fontconfig
     $ sudo rpm -Uvh grafana-2.1.3-1.x86_64.rpm
 
+#### On OpenSuse:
+
+    $ sudo rpm -i --nodeps grafana-2.1.3-1.x86_64.rpm
+
 ## Install via YUM Repository
 
 Add the following to a new file at `/etc/yum.repos.d/grafana.repo`