Changelog:
===========
Optimized performance and memory usage for broadcasts
Improved documentation on horizontal scaling
Corrected user session documentation example
Improved grammar in documentation
Fix docstring typo: client/server mixup
Fix typos in the documentation
Upgrade dependencies in Django server example
Update reference JavaScript examples
Upgrade to pypy-3.9 in unit tests
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
