update LICENSE

Author: chaoming0625

LICENSE

@@ -631,8 +631,8 @@ to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
 
-    {one line to give the program's name and a brief idea of what it does.}
-    Copyright (C) {year}  {name of author}
+    BrainPy and its ecosystem
+    Copyright (C) 2020-2023  BrainPy Team
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -652,7 +652,7 @@ Also add information on how to contact you by electronic and paper mail.
   If the program does terminal interaction, make it output a short
 notice like this when it starts in an interactive mode:
 
-    brainpylib  Copyright (C) 2022  BrainPy Team
+    brainpylib  Copyright (C)  2020-2023  BrainPy Team
     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
     This is free software, and you are welcome to redistribute it
     under certain conditions; type `show c' for details.

README.md

@@ -47,12 +47,7 @@ For detailed installation instructions, please refer to the documentation: [Quic
 
 
 
-## License
-
-[Apache License, Version 2.0](https://github.com/brainpy/BrainPy/blob/master/LICENSE)
-
-
 
 ## Citing
 
-If you are using BrainPy, please consider citing [the corresponding papers](https://brainpy.readthedocs.io/en/latest/tutorial_FAQs/citing_and_publication.html). 
+If you are using ``brainpy``, please consider citing [the corresponding papers](https://brainpy.readthedocs.io/en/latest/tutorial_FAQs/citing_and_publication.html).