Update changelog and docs

Author: noellie-velez

com.unity.netcode.gameobjects/CHANGELOG.md

@@ -11,6 +11,8 @@ Additional documentation and release notes are available at [Multiplayer Documen
 ### Added
 
 - It is now possible to control which port clients will bind to using the `UnityTransport.ConnectionData.ClientBindPort` field. If not set, clients will bind to an ephemeral port (same as before this change). (#3764)
+- Added a flag to override command-line arguments (port and ip) in `SetConnectionData` (#3760)
+- Added a command-line singleton to parse environment command-line arguments (#3760)
 
 
 ### Changed

com.unity.netcode.gameobjects/Documentation~/TableOfContents.md

@@ -19,7 +19,7 @@
     * [Max players](basics/maxnumberplayers.md)
   * [Transports](advanced-topics/transports.md)
   * [Unity Relay](relay/relay.md)
-  * Command line arguments
+  * [Command line arguments](command-line-arguments.md)
 * [Network components](network-components.md)
   * [Core components](components/core/corecomponents.md)
     * [NetworkObject](components/core/networkobject.md)

com.unity.netcode.gameobjects/Documentation~/command-line-arguments.md

@@ -1,4 +1,3 @@
-# WORK IN PROGRESS
 # Command line arguments
 
 You can use [command line arguments](https://docs.unity3d.com/Documentation/Manual/CommandLineArguments.html) to configure certain aspects of your game at launch. This is especially useful for dedicated server builds, where arguments let you override default network settings such as the IP address and port.
@@ -7,7 +6,7 @@ You can use [command line arguments](https://docs.unity3d.com/Documentation/Manu
 
 When launching a standalone build (for example, a headless dedicated server), you can supply custom arguments to modify runtime behavior.
 
-Available arguments:
+Reserved arguments:
 - -port
 - -ip