Update README.md (#53)

Author: tamir-michaeli

README.md

@@ -13,7 +13,7 @@ This appender uses  [LogzioSender](https://github.com/logzio/logzio-java-sender)
     <dependency>
         <groupId>io.logz.log4j2</groupId>
         <artifactId>logzio-log4j2-appender</artifactId>
-        <version>1.0.18</version>
+        <version>1.0.19</version>
     </dependency>
 ```
 The appender also requires a logger implementation, for example: