Add config file example to variables.md

Add a config file example for setting .Site.Params to variables.md. This addresses my confusion in [issue #766](https://github.com/spf13/hugo/issues/766).

diff --git a/docs/content/templates/variables.md b/docs/content/templates/variables.md
index 93f5ad02bfb0c2fe40a50d7faaf160b92dc17ef1..e6b6b5a3f0ca8605fac32029e310294195df463d 100644 (file)
--- a/docs/content/templates/variables.md
+++ b/docs/content/templates/variables.md
@@ -83,4 +83,10 @@ Also available is `.Site` which has the following:
 **.Site.Taxonomies** The indexes for the entire site.<br>
 **.Site.LastChange** The date of the last change of the most recent content.<br>
 **.Site.Recent** Array of all content ordered by Date, newest first.<br>
-**.Site.Params** A container holding the values from `params` in your site configuration file.<br>
+**.Site.Params** A container holding the values from the `params` section of your site configuration file. For example, a TOML config file might look like this:
+
+    baseurl = "http://yoursite.example.com/"
+
+    [params]
+      description = "Tesla's Awesome Hugo Site"
+      author = "Nikola Tesla"