Sync with txtai 9.0 API, closes #40

Author: davidmezzetti

README.md

@@ -32,7 +32,7 @@ Jitpack is the recommended way to integrate txtai with Java. See [this link](htt
 The following is an example adding txtai to a project's `build.gradle` file. The same attributes can be ported to other build systems per the JitPack link above.
 
 ```gradle
-implementation 'com.github.neuml:txtai.java:v8.6.0'
+implementation 'com.github.neuml:txtai.java:v9.0.0'
 ```
 
 txtai can also be manually built from GitHub.

build.gradle

@@ -17,5 +17,5 @@ java {
 
 jar {
     archiveBaseName = "txtai"
-    archiveVersion = "8.6.0"
+    archiveVersion = "9.0.0"
 }