Update zarr-java version in README to 0.3.0

Author: stefanhahmann

README.md

@@ -268,7 +268,7 @@ On top of those five, a number of third-party `.jar` files are needed. Which one
     * **Fiji-Stable** ships older versions that have to be updated to the ones listed below. Be aware that other Fiji
       plugins depend on N5 as well, e.g. **BigStitcher** — so updating the N5 jars in a Fiji-Stable installation may
       break them. If you can, use Fiji-Latest, or keep a separate Fiji installation for OME-Zarr work.
-* **zarr-java backend** (the default) needs `zarr-java` 0.1.3 and two of its dependencies (the Blosc codec and a
+* **zarr-java backend** (the default) needs `zarr-java` 0.3.0 and two of its dependencies (the Blosc codec and a
   Jackson module), none of which Fiji ships.
 
 #### N5 backend
@@ -288,7 +288,7 @@ On top of those five, a number of third-party `.jar` files are needed. Which one
 
 #### zarr-java backend
 
-* [zarr-java-0.1.3](https://repo1.maven.org/maven2/dev/zarr/zarr-java/0.1.3/zarr-java-0.1.3.jar)
+* [zarr-java-0.3.0](https://repo1.maven.org/maven2/dev/zarr/zarr-java/0.3.0/zarr-java-0.3.0.jar)
 * [blosc-java-0.3-1.21.6](https://repo1.maven.org/maven2/com/scalableminds/blosc-java/0.3-1.21.6/blosc-java-0.3-1.21.6.jar) —
   dependency of `zarr-java` (Blosc codec)
 * [jackson-datatype-jdk8-2.20.0](https://repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.20.0/jackson-datatype-jdk8-2.20.0.jar) —