update: LICENSE

This commit updates the license, improving grammar and updating according to other projects.

LICENSE

@@ -1,19 +1,22 @@
-PerformanC's PerforVNMaker Custom License
+PerformanC's Custom License
 
 Copyright (c) 2023 PerformanC <performancorg@gmail.com>
 
 This Software may be shared, altered, and used without charge; 
 it may also be sold (though not as a stand-alone product); 
-and it can even be used for commercial purposes. 
-However, the software code neither can be used to train a neural network,
-nor any part of the code can be copied in any way without the permission
-of the PerformanC Organization team members. An exception is made for the
+and it can even be used for commercial purposes.
+However, its source code cannot be used to train a neural
+network, nor can it (The Software) be copied in any way without the
+permission of the PerformanC Organization. An exception is made for the
 generated code, which can be used with one exception: the generated
 code cannot be used for or any type of software that creates softwares
 of any kind.
 
-The license must included at the source code of the PerformanC software
-outside the official PerformanC repository.
+
+In case of external usage or copy, the license also must be
+included at the source code of the PerformanC software
+outside the official PerformanC repository, followed by
+the URL of the PerformanC GitHub repository.
 
 The Software is given "as is" and without any warranties, 
 and its developers disclaim all liability for any harm it (The Software) may cause.