Added Silent Command.

Command-Reference.md

@@ -29,6 +29,7 @@ If you're looking for the [Multiverse-Portals](https://github.com/Multiverse/Mul
   * [Remove](#wiki-modify_addremove)
   * [Clear](#wiki-modify_clear)
 1. [Environment Command](#wiki-env)
+1. [Silent Command](#wiki-silent)
 1. [Sleep Command - **DISABLED**](#wiki-sleep)
 
 [↑ Back to Top ↑](#wiki-top)
@@ -666,6 +667,24 @@ Displays all valid environments that this Bukkit server knows about.
 
 ---
 
+## <a name="silent" href="#wiki-silent">•</a>Silent Command
+#### Description:
+Causes several of the startup messages to be hidden when silent mode is enabled.
+#### Usage:
+`/mv silent [true|false]`
+#### Examples:
+`/mv silent`
+#### Aliases:
+`/mv silent true`
+#### Permission:
+`multiverse.core.silent`
+#### Details:
+Causes several of the startup messages to be hidden when silent mode is enabled.  May also apply to other messages later.
+
+[Back to Top](#wiki-top)
+
+---
+
 ## <a name="sleep" href="#wiki-sleep">•</a>Sleep Command \*\*WARNING: THIS COMMAND IS CURRENTLY BROKEN!!!\*\*
 #### Description:
 Takes you to the last bed you slept in.