module.exports.inject = inject (#104)

Make the TypeScript example work:
`import { inject, DistpatchFunc } from 'light-my-request'`

Author: BlackGlory

index.js

@@ -209,4 +209,5 @@ function isInjection (obj) {
 function toLowerCase (m) { return m.toLowerCase() }
 
 module.exports = inject
+module.exports.inject = inject
 module.exports.isInjection = isInjection