[maven-release-plugin] prepare release v0.2.1

Author: jurgenvinju

pom.xml

@@ -3,12 +3,12 @@
 
     <groupId>org.rascalmpl</groupId>
     <artifactId>rascal-tutor-screenshot</artifactId>
-    <version>0.2.1-SNAPSHOT</version>
+    <version>0.2.1</version>
     <packaging>jar</packaging>
 
     <scm>
         <developerConnection>scm:git:ssh://git@github.com/usethesource/rascal-tutor-screenshot.git</developerConnection>
-        <tag>SNAPSHOT</tag>
+        <tag>v0.2.1</tag>
       </scm>
 
     <name>Rascal Tutor Screenshot plugin</name>