Update README

Signed-off-by: Fabian Stäber <fabian@fstab.de>

Author: fstab

MAINTAINER_NOTES.md

@@ -11,8 +11,8 @@ Use the [Versions Maven Plugin](https://www.mojohaus.org/versions-maven-plugin/i
 ## Release
 
 ```
-./mvnw release:prepare -DreleaseVersion=0.16.0 -DdevelopmentVersion=0.16.1-SNAPSHOT
-./mvnw release:perform -DreleaseVersion=0.16.0 -DdevelopmentVersion=0.16.1-SNAPSHOT
+./mvnw release:prepare -DreleaseVersion=1.2.0 -DdevelopmentVersion=1.3.0-SNAPSHOT
+./mvnw release:perform -DreleaseVersion=1.2.0 -DdevelopmentVersion=1.3.0-SNAPSHOT
 ```
 
 `release:prepare` does Github tags and commits, while `release:perform` signs the artifacts and uploads them to the staging repositoring on [https://oss.sonatype.org](https://oss.sonatype.org).

README.md

@@ -2,8 +2,6 @@
 
 [![Build Status](https://circleci.com/gh/prometheus/client_java.svg?style=svg)](https://circleci.com/gh/prometheus/client_java)
 
-Release date for 1.0.0 is 27 Sep 2023. Pre-releases are [available](https://github.com/prometheus/client_java/releases).
-
 # Documentation
 
 [https://prometheus.github.io/client_java](https://prometheus.github.io/client_java)