fix: update MP Tools package link on the NetworkManager popup (#2526)

Author: 0xFA11

com.unity.netcode.gameobjects/CHANGELOG.md

@@ -12,6 +12,7 @@ Additional documentation and release notes are available at [Multiplayer Documen
 
 ### Fixed
 
+- Fixed Multiplayer Tools package installation docs page link on the NetworkManager popup. (#2526)
 - Fixed a memory leak in `UnityTransport` that occurred if `StartClient` failed. (#2518)
 - Fixed issue where a client could throw an exception if abruptly disconnected from a network session with one or more spawned `NetworkObject`(s). (#2510)
 - Fixed issue where invalid endpoint addresses were not being detected and returning false from NGO UnityTransport. (#2496)

com.unity.netcode.gameobjects/Editor/NetworkManagerEditor.cs

@@ -339,7 +339,7 @@ private static void DrawInstallMultiplayerToolsTip()
             const string getToolsText = "Access additional tools for multiplayer development by installing the Multiplayer Tools package in the Package Manager.";
             const string openDocsButtonText = "Open Docs";
             const string dismissButtonText = "Dismiss";
-            const string targetUrl = "https://docs-multiplayer.unity3d.com/netcode/current/tools/install-tools";
+            const string targetUrl = "https://docs-multiplayer.unity3d.com/tools/current/install-tools";
             const string infoIconName = "console.infoicon";
 
             if (NetcodeForGameObjectsEditorSettings.GetNetcodeInstallMultiplayerToolTips() != 0)