Update CHANGELOG and docs for v6.4.0

Author: mpkorstanje

CHANGELOG.md

@@ -13,6 +13,18 @@ See also the [CHANGELOG](https://github.com/cucumber/cucumber-jvm/blob/master/CH
 
 ### Changed
 
+### Deprecated
+
+### Removed
+
+### Fixed
+
+## [6.4.0] (2020-08-01)
+
+### Added
+
+### Changed
+
 - [Core] Update `cucumber-core` dependency to [6.4.0](https://github.com/cucumber/cucumber-jvm/blob/main/CHANGELOG.md)
 - [Build] Update Scala versions to 2.12.12
 
@@ -205,7 +217,8 @@ See also the [CHANGELOG](https://github.com/cucumber/cucumber-jvm/blob/master/CH
 - [Build] Update Scala versions to 2.11.12 and 2.12.7 ([#11](https://github.com/cucumber/cucumber-jvm-scala/issues/11) Arturas Smorgun)
 
 <!-- Releases -->
-[Unreleased]: https://github.com/cucumber/cucumber-jvm-scala/compare/v6.3.0...main
+[Unreleased]: https://github.com/cucumber/cucumber-jvm-scala/compare/v6.4.0...main
+[6.4.0]:  https://github.com/cucumber/cucumber-jvm-scala/compare/v6.3.0...v6.4.0
 [6.3.0]:  https://github.com/cucumber/cucumber-jvm-scala/compare/v6.2.2...v6.3.0
 [6.2.2]:  https://github.com/cucumber/cucumber-jvm-scala/compare/v6.2.1...v6.2.2
 [6.2.1]:  https://github.com/cucumber/cucumber-jvm-scala/compare/v6.2.0...v6.2.1

docs/install.md

@@ -7,7 +7,7 @@
 To use Cucumber Scala in your project, add the following line to your `build.sbt`:
 
 ```scala
-libraryDependencies += "io.cucumber" %% "cucumber-scala" % "6.3.0" % Test
+libraryDependencies += "io.cucumber" %% "cucumber-scala" % "6.4.0" % Test
 ```
 
 ### Maven
@@ -18,7 +18,7 @@ To use Cucumber Scala in your project, add the following dependency to your `pom
 <dependency>
     <groupId>io.cucumber</groupId>
     <artifactId>cucumber-scala_2.12</artifactId>
-    <version>6.3.0</version>
+    <version>6.4.0</version>
     <scope>test</scope>
 </dependency>
 ```