Update readme.md (#13)

1.2.0 in readme

readme.md

@@ -26,7 +26,7 @@ The library was tested and worked properly with:
 <dependency>
     <groupId>com.coveo</groupId>
     <artifactId>spring-boot-parameter-store-integration</artifactId>
-    <version>1.1.2</version>
+    <version>1.2.0</version>
 </dependency>
 ```