Update docs for plugin get command

Author: ernilambar

README.md

@@ -197,10 +197,28 @@ wp plugin get <plugin> [--field=<field>] [--fields=<fields>] [--format=<format>]
 		  - yaml
 		---
 
+**AVAILABLE FIELDS**
+
+These fields will be displayed by default for the plugin:
+
+* name
+* title
+* author
+* version
+* description
+* status
+
+These fields are optionally available:
+
+* requires_wp
+* requires_php
+* requires_plugins
+
 **EXAMPLES**
 
+    # Get plugin details.
     $ wp plugin get bbpress --format=json
-    {"name":"bbpress","title":"bbPress","author":"The bbPress Contributors","version":"2.6-alpha","description":"bbPress is forum software with a twist from the creators of WordPress.","status":"active"}
+    {"name":"bbpress","title":"bbPress","author":"The bbPress Contributors","version":"2.6.9","description":"bbPress is forum software with a twist from the creators of WordPress.","status":"active"}
 
 
 

src/Plugin_Command.php

@@ -941,10 +941,28 @@ public function install( $args, $assoc_args ) {
 	 *   - yaml
 	 * ---
 	 *
+	 * ## AVAILABLE FIELDS
+	 *
+	 * These fields will be displayed by default for the plugin:
+	 *
+	 * * name
+	 * * title
+	 * * author
+	 * * version
+	 * * description
+	 * * status
+	 *
+	 * These fields are optionally available:
+	 *
+	 * * requires_wp
+	 * * requires_php
+	 * * requires_plugins
+	 *
 	 * ## EXAMPLES
 	 *
+	 *     # Get plugin details.
 	 *     $ wp plugin get bbpress --format=json
-	 *     {"name":"bbpress","title":"bbPress","author":"The bbPress Contributors","version":"2.6-alpha","description":"bbPress is forum software with a twist from the creators of WordPress.","status":"active"}
+	 *     {"name":"bbpress","title":"bbPress","author":"The bbPress Contributors","version":"2.6.9","description":"bbPress is forum software with a twist from the creators of WordPress.","status":"active"}
 	 */
 	public function get( $args, $assoc_args ) {
 		$default_fields = array(