Add "policy read" command documentation

website/source/docs/commands/policy/read.html.md

@@ -0,0 +1,26 @@
+---
+layout: "docs"
+page_title: "policy read - Command"
+sidebar_current: "docs-commands-policy-read"
+description: |-
+  The "policy read" command prints the contents and metadata of the Vault policy
+  named NAME. If the policy does not exist, an error is returned.
+---
+
+# policy read
+
+The `policy read` command prints the contents and metadata of the Vault policy
+named NAME. If the policy does not exist, an error is returned.
+
+## Examples
+
+Read the policy named "my-policy":
+
+```text
+$ vault policy read my-policy
+```
+
+## Usage
+
+There are no flags beyond the [standard set of flags](/docs/commands/index.html)
+included on all commands.