Add applicationinsights-js maintainers
Add applicationinsights-js maintainers

dsebastien/DefinitelyTyped,borisyankov/DefinitelyTyped,georgemarshall/DefinitelyTyped,borisyankov/DefinitelyTyped,magny/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,magny/DefinitelyTyped,AgentME/DefinitelyTyped,dsebastien/DefinitelyTyped,AgentME/DefinitelyTyped,markogresak/DefinitelyTyped,AgentME/DefinitelyTyped,AgentME/DefinitelyTyped,mcliment/DefinitelyTyped