docs: update readme with new release version (GoogleCloudPlatform#116)

Author: anniefu

README.md

@@ -158,7 +158,7 @@ You can configure the plugin in `pom.xml`:
 <plugin>
   <groupId>com.google.cloud.functions</groupId>
   <artifactId>function-maven-plugin</artifactId>
-  <version>0.9.7</version>
+  <version>0.9.8</version>
   <configuration>
     <functionTarget>com.example.function.Echo</functionTarget>
   </configuration>
@@ -187,15 +187,15 @@ Copy the Functions Framework jar to a local location like this:
 
 ```sh
 mvn dependency:copy \
-    -Dartifact='com.google.cloud.functions.invoker:java-function-invoker:1.0.2' \
+    -Dartifact='com.google.cloud.functions.invoker:java-function-invoker:1.0.3' \
     -DoutputDirectory=.
 ```
 
 In this example we use the current directory `.` but you can specify any other
 directory to copy to. Then run your function:
 
 ```sh
-java -jar java-function-invoker-1.0.2 \
+java -jar java-function-invoker-1.0.3 \
     --classpath myfunction.jar \
     --target com.example.HelloWorld
 ```
@@ -288,7 +288,7 @@ Framework directly, you must use `--classpath` to indicate how to find the code
 and its dependencies. For example:
 
 ```
-java -jar java-function-invoker-1.0.2 \
+java -jar java-function-invoker-1.0.3 \
     --classpath 'myfunction.jar:/some/directory:/some/library/*' \
     --target com.example.HelloWorld
 ```