[node-telegram-bot-api] Added sendMediaGroup (#26066)
[node-telegram-bot-api] Added sendMediaGroup (#26066)

* Added sendMediaGroup

[sendMediaGroup](https://github.com/yagop/node-telegram-bot-api/blob/435f06319e92f12fb7ef642f91d031dafe5aff80/src/telegram.js#L1831-L1877) doesn't seem to [work](https://github.com/yagop/node-telegram-bot-api/issues/492) currently but here are the typings for it.

* Typo in github domain

* Removed whitespace and added semicolon

borisyankov/DefinitelyTyped,georgemarshall/DefinitelyTyped,one-pieces/DefinitelyTyped,AgentME/DefinitelyTyped,dsebastien/DefinitelyTyped,georgemarshall/DefinitelyTyped,magny/DefinitelyTyped,dsebastien/DefinitelyTyped,mcliment/DefinitelyTyped,AgentME/DefinitelyTyped,AgentME/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,AgentME/DefinitelyTyped,borisyankov/DefinitelyTyped,markogresak/DefinitelyTyped,rolandzwaga/DefinitelyTyped,rolandzwaga/DefinitelyTyped,magny/DefinitelyTyped