Add example for mocha 7, since they removed some watch flags in v7 (#961)
Add example for mocha 7, since they removed some watch flags in v7 (#961)

* Add example for mocha 7, since they removed some watch flags in v7

* addressing pr feedback

* empty commit to trigger travis re-run

blakeembrey/typescript-node,blakeembrey/typescript-node,TypeStrong/ts-node,TypeStrong/ts-node,TypeStrong/ts-node,TypeStrong/ts-node