[maven-release-plugin] prepare release 3.0.0

pom.xml

@@ -1,19 +1,18 @@
 <?xml version="1.0"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-apps-parent</artifactId>
         <version>1.1</version>
-        <relativePath/>
+        <relativePath />
     </parent>
 
     <groupId>org.exist-db</groupId>
     <artifactId>exist-documentation</artifactId>
-    <version>3.0.0-SNAPSHOT</version>
+    <version>3.0.0</version>
 
     <name>eXist-db Documentation</name>
     <description>Documentation package for eXist-db</description>
@@ -37,7 +36,8 @@
         <url>https://www.github.com/exist-db/documentation.git</url>
         <connection>scm:git:https://www.github.com/exist-db/documentation.git</connection>
         <developerConnection>scm:git:https://www.github.com/exist-db/documentation.git</developerConnection>
-    </scm>
+      <tag>3.0.0</tag>
+  </scm>
     <issueManagement>
         <system>GitHub</system>
         <url>https://github.com/eXist-db/documentation/issues</url>