Merge pull request #3 from dyriavin/add-support-laravel-10

Upgrade illuminate/broadcasting to support laravel 10

Merge pull request #2 from lk77/patch-1

Adding channel method to MutlipleBroadcaster

Merge pull request #1 from DigitalTolk/upgrade/l9

support added for L9

Support laravel 7 and 8

Update readme