Remove the rc1 in the README.md

Change-Id: Idf7da1a56a3747cbb5b11fea7fe6cb7fb47b5a64
diff --git a/README.md b/README.md
index 32d69a7..2fac467 100644
--- a/README.md
+++ b/README.md
@@ -28,12 +28,12 @@
 ## Build docker image
 
 For docker images that contain released Gerrit versions, tags exist in this git repository pointing
-to a state of the repository, where this version of Gerrit (e.g. 3.0.0-rc1) is referenced in the
+to a state of the repository, where this version of Gerrit (e.g. 3.0.0) is referenced in the
 Dockerfiles. To build such a docker image for development purposes, checkout the respective version
 tag, e.g.:
 
 ```
-git checkout v3.0.0-rc1
+git checkout v3.0.0
 ```
 
 Navigate to either `./centos/7` or `./ubuntu/18` to build the centos- or ubuntu-based docker image,