Add glances info widget

Information-Widgets.md

@@ -199,4 +199,16 @@ format:
   dateStyle: short
   timeStyle: short
   hour12: true
+```
+
+## Glances
+
+The Glances widget allows you to monitor the resources (CPU + Memory) of another machine, it is designed to match the `resources` info widget. You can have multiple instances by adding another configuration block.
+
+```yaml
+- glances:
+    url: http://host.or.ip:port
+    username: user # optional if auth enabled in Glances
+    password: pass # optional if auth enabled in Glances
+    label: MyMachine # optional
 ```