Final pieces to the smokeping integration

doc/Extensions/Smokeping.md

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+# Smokeping integration
+
+We currently have two ways to use Smokeping with LibreNMS, the first is using the included script generator to generate the config for Smokeping. The 
+second is to utilise an existing Smokeping setup.
+
+### Included Smokeping script
+
+To use this, please add something similar to your smokeping config file:
+
+```bash
+@include /opt/smokeping/etc/librenms.conf
+```
+
+Then you need to generate the config file (maybe even add a cron to schedule this in and reload smokeping). We've assumed a few locations for smokeping, the config file you want 
+to call it and where LibreNMS is:
+
+```bash
+cd /opt/librenms/scripts/
+php ./gen_smokeping.php > /opt/smokepgin/etc/librenms.conf
+/opt/smokeping/bin/smokeping --reload
+```
+
+Sample cron:
+
+```bash
+15   0    * * * root cd /opt/librenms/scripts && php ./gen_smokeping.php > /opt/smokepgin/etc/librenms.conf && /opt/smokeping/bin/smokeping --reload >> /dev/null 2>&1
+```
+
+Now configure LibreNMS (make sure you point dir to your smokeping data directory:
+
+```php
+$config['smokeping']['dir'] = '/opt/smokeping/data';
+$config['smokeping']['integration'] = true;
+```
+
+### Standard Smokeping
+
+This is quite simple, just point your dir at the smokeping data directory - please be aware that all RRD files need to be within this dir and NOT sub dirs:
+
+```php
+$config['smokeping']['dir'] = '/opt/smokeping/data';
+$config['own_hostname']
+```
+
+You should now see a new tab in your device page called ping.