Corrupted links in README.md

[root5427]

Links to issues and pull requests lead to a non-existent page.

vue-the-mask/README.md

Line 102 in c13bbee

You're free to contribute to this project by submitting [issues](https://github.com/vuejs-tips/v-tag-input.svg/issues) and/or [pull requests](https://github.com/vuejs-tips/v-tag-input.svg/pulls). This project is test-driven, so keep in mind that every change and new feature should be covered by tests. Your name will be added to the hall of fame ;)

#187 solves it