Fix link for scala 2.12.14 (#349)

Author: Philippus

Diff for: README.md

@@ -4,7 +4,7 @@
 [![Gitter](https://img.shields.io/gitter/room/scoverage/scoverage.svg)](https://gitter.im/scoverage/scoverage)
 [![Maven Central](https://img.shields.io/maven-central/v/org.scoverage/scalac-scoverage-plugin_2.10.svg?label=latest%20release%20for%202.10)](http://search.maven.org/#search|ga|1|g%3A%22org.scoverage%22%20AND%20a%3A%22scalac-scoverage-plugin_2.10%22)
 [![Maven Central](https://img.shields.io/maven-central/v/org.scoverage/scalac-scoverage-plugin_2.11.12.svg?label=latest%202.11%20Scala%20support%20[2.11.12]%20and%20latest%20version)](http://search.maven.org/#search|ga|1|g%3A%22org.scoverage%22%20AND%20a%3A%22scalac-scoverage-plugin_2.11.12%22)
-[![Maven Central](https://img.shields.io/maven-central/v/org.scoverage/scalac-scoverage-plugin_2.12.14.svg?label=latest%202.12%20Scala%20support%20[2.12.14]%20and%20latest%20version)](http://search.maven.org/#search|ga|1|g%3A%22org.scoverage%22%20AND%20a%3A%22scalac-scoverage-plugin_2.12.13%22)
+[![Maven Central](https://img.shields.io/maven-central/v/org.scoverage/scalac-scoverage-plugin_2.12.14.svg?label=latest%202.12%20Scala%20support%20[2.12.14]%20and%20latest%20version)](http://search.maven.org/#search|ga|1|g%3A%22org.scoverage%22%20AND%20a%3A%22scalac-scoverage-plugin_2.12.14%22)
 [![Maven Central](https://img.shields.io/maven-central/v/org.scoverage/scalac-scoverage-plugin_2.13.6.svg?label=latest%202.13%20Scala%20support%20[2.13.6]%20and%20version)](http://search.maven.org/#search|ga|1|g%3A%22org.scoverage%22%20AND%20a%3A%22scalac-scoverage-plugin_2.13.6%22)
 [![License](http://img.shields.io/:license-Apache%202-red.svg)](http://www.apache.org/licenses/LICENSE-2.0.txt)