Added support for Oxidized versioning

doc/Extensions/Oxidized.md

@@ -0,0 +1,40 @@
+# Oxidized integration
+
+You can integrate LibreNMS with [Oxidized](https://github.com/ytti/oxidized-web) in two ways:
+
+### Config viewing
+
+This is a straight forward use of Oxidized, it relies on you having a working Oxidized setup which is already taking config snapshots for your devices. 
+When you have that, you only need the following config to enable the display of device configs within the device page itself:
+
+```php
+$config['oxidized']['enabled']         = TRUE;
+$config['oxidized']['url']             = 'http://127.0.0.1:8888';
+```
+
+We also support config versioning within Oxidized, this will allow you to see the old configs stored. At present this is waiting on a [PR](https://github.com/ytti/oxidized-web/pull/25) to be merged upstream into Oxidized but you could simply patch your local install in the meantime.
+
+```php
+$config['oxidized']['features']['versioning'] = true;
+```
+
+### Feeding Oxidized
+
+Oxidized has support for feeding devices into it via an API call, support for Oxidized has been added to the LibreNMS API. A sample config for Oxidized is provided below.
+
+You will need to configure default credentials for your devices, LibreNMS doesn't provide login credentials at this time.
+
+```bash
+      source:
+        default: http
+        debug: false
+        http:
+          url: https://librenms/api/v0/oxidized
+          scheme: https
+          delimiter: !ruby/regexp /:/
+          map:
+            name: hostname
+            model: os
+          headers:
+            X-Auth-Token: '01582bf94c03104ecb7953dsadsadwed'
+```