Fixed some outdated comments in the master pom.

pom.xml

@@ -12,13 +12,13 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <!-- maven-java-formatter-plugin -->
     <maven.compiler.source>8</maven.compiler.source>
     <maven.compiler.target>8</maven.compiler.target>
     <slf4j.version>1.7.25</slf4j.version>
     <logback.version>${logback-core.version}</logback.version>
     <webarchive-commons.version>1.1.5</webarchive-commons.version>
-    <!-- Icelandic special brew of H3. -->
+    <!-- Heritrix versions are from https://github.com/netarchivesuite/heritrix3 which tracks the official
+     repository at https://github.com/internetarchive/heritrix3 as closely as we can -->
     <heritrix3.version>3.4.0-20200518-NAS-6.0</heritrix3.version>
     <heritrix3-wrapper.version>1.0.4</heritrix3-wrapper.version>
     <wayback.version>1.8.0-20130411</wayback.version>