prepare for 1.6.0

Author: harrel56

README.md

@@ -29,12 +29,12 @@ Please note that you will also need to include at least one of the supported JSO
 <dependency>
     <groupId>dev.harrel</groupId>
     <artifactId>json-schema</artifactId>
-    <version>1.5.2</version>
+    <version>1.6.0</version>
 </dependency>
 ```
 ### Gradle
 ```groovy
-implementation 'dev.harrel:json-schema:1.5.2'
+implementation 'dev.harrel:json-schema:1.6.0'
 ```
 
 ## Usage

build.gradle

@@ -11,7 +11,7 @@ apply from: 'setup/reporting.gradle'
 apply from: 'setup/testing.gradle'
 
 group 'dev.harrel'
-version '1.5.2'
+version '1.6.0'
 
 compileJava {
     sourceCompatibility = JavaVersion.VERSION_1_8