Fix README typo

nano is questionable.

README.md

@@ -20,8 +20,7 @@ The OpenAPI Specification has undergone 4 revisions since initial creation in 20
 
 Swagger UI Version | Release Date | OpenAPI Spec compatibility | Notes | Status
 ------------------ | ------------ | -------------------------- | ----- | ------
-3.0.15              | 2017-06-16   | 2.0                        | [tag 
-v3.0.15](https://github.com/swagger-api/swagger-ui/tree/v3.0.15) |
+3.0.15              | 2017-06-16   | 2.0                        | [tag v3.0.15](https://github.com/swagger-api/swagger-ui/tree/v3.0.15) |
 2.2.10             | 2017-01-04   | 1.1, 1.2, 2.0              | [tag v2.2.10](https://github.com/swagger-api/swagger-ui/tree/v2.2.10) |
 2.1.5              | 2016-07-20   | 1.1, 1.2, 2.0              | [tag v2.1.5](https://github.com/swagger-api/swagger-ui/tree/v2.1.5) |
 2.0.24             | 2014-09-12   | 1.1, 1.2 | [tag v2.0.24](https://github.com/swagger-api/swagger-ui/tree/v2.0.24) |