New page to explain context methods and variables available in properties YAML files

website/docs/reference/dbt-jinja-functions/properties-yml-context.md

@@ -0,0 +1,34 @@
+---
+title: " About properties.yml context"
+sidebar_label: "properties.yml context"
+id: "dbt-properties-yml-context"
+description: "The context methods and variables available when configuring resources in a properties.yml file."
+---
+
+The following context methods and variables are available when configuring
+resources in a `properties.yml` file.
+
+**Available context methods:**
+- [env_var](/reference/dbt-jinja-functions/env_var)
+- [var](/reference/dbt-jinja-functions/var)
+
+**Available context variables:**
+- [target](/reference/dbt-jinja-functions/target)
+- [builtins](/reference/dbt-jinja-functions/builtins)
+- [dbt_version](/reference/dbt-jinja-functions/dbt_version)
+
+### Example configuration
+
+<File name='properties.yml'>
+
+```yml
+# Configure this model to be materialized as a view
+# in development and a table in production/CI contexts
+
+models:
+  - name: dim_customers
+    config:
+      materialized: "{{ 'view' if target.name == 'dev' else 'table' }}"
+```
+
+</File>