Add examples readme

Author: wfg

examples/README.md

@@ -0,0 +1,11 @@
+# Examples
+
+This directory contains examples that are mostly used for documentation, but can also be run/tested manually via the Terraform CLI.
+
+The document generation tool looks for files in the following locations by default. All other *.tf files besides the ones mentioned below are ignored by the documentation tool. This is useful for creating examples that can run and/or are testable even if some parts are not relevant for the documentation.
+
+* `provider/provider.tf` example file for the provider index page
+* `data-sources/data_source_name/data-source.tf` example file for the named data source page
+* `resources/resource_name/resource.tf` example file for the named data source page
+
+The files in the `defaults/` directory are for Prisma Cloud Compute default configurations.