Add markdown variables aliases

source/templates/markdown/example.md

@@ -2,6 +2,8 @@
 
 This is a markdown template example which explain the basic usage of this template.
 
+See [rendering of this file here](https://github.com/lowlighter/lowlighter/blob/master/metrics.markdown.full.md).
+
 ## 🈂️ Templating syntax:
 
 * Regular EJS syntax is supported
@@ -9,6 +11,12 @@ This is a markdown template example which explain the basic usage of this templa
   * `{%` and `%}` can be used as control statements
 * Use [metrics.lecoq.io](https://metrics.lecoq.io/) with `config.output=json` to see available data
   * You can also use `config_output: json` in GitHub Actions and/or inspect [metrics](https://github.com/lowlighter/metrics) code to get available data too
+* Same formatting helpers available in templates can be used too
+
+```markdown
+I joined GitHub on `{{ f.date(REGISTRATION_DATE, {dateStyle:"short"}) }}`.
+I contributed to `{{ REPOSITORIES_CONTRIBUTED_TO }}` repositories and made `{{ COMMITS }}` commits.
+```
 
 ## 🧩 Markdown plugins