fix ossrh release warnings

Author: Enrico Olivelli

docet.maven.plugin/pom.xml

@@ -6,6 +6,8 @@
     <version>1.7.0</version>
     <packaging>maven-plugin</packaging>
     <name>Docet Maven Plugin</name>
+    <url>http://docetproject.org</url>
+    <description>A flexible easy-to-integrate online documentation manager</description>
     <licenses>
         <license>
             <name>Apache License, Version 2.0</name>

pom.xml

@@ -6,6 +6,7 @@
     <version>1.7.0</version>
     <packaging>pom</packaging>
     <name>DOCet</name>
+    <url>http://docetproject.org</url>
     <description>A flexible easy-to-integrate online documentation manager</description>
     <licenses>
         <license>