Update README.md

Add correct, available version of API dep.
diff --git a/README.md b/README.md
index f085ab0..2c52e4e 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 TODO
 
 ```groovy
-compile "org.apache.logging.log4j:log4j-api-kotlin:1.0"
+compile "org.apache.logging.log4j:log4j-api-kotlin:1.0.0"
 compile "org.apache.logging.log4j:log4j-api:2.8.2"
 compile "org.apache.logging.log4j:log4j-core:2.8.2"
 ```