Minor fixes for publishing

This includes additions to the POM to meet publishing requirements, as well as fixing a typo in the package directory for sources.

Author: dchenbec

pom.xml

@@ -5,12 +5,20 @@
  <artifactId>aws-sigv4-auth-cassandra-java-driver-plugin</artifactId>
  <version>4.0.0</version>
  <name>AWS SigV4 Auth Java Driver 4.x Plugin</name>
+ <description>A Plugin to allow SigV4 authentication for Java Cassandra drivers with Amazon MCS</description>
+ <url>https://github.com/aws/aws-sigv4-auth-cassandra-java-driver-plugin</url>
  <organization>
  <name>Amazon Web Services</name>
  <url>https://aws.amazon.com</url>
  </organization>
  <inceptionYear>2020</inceptionYear>
 
+ <scm>
+ <connection>scm:git:https://github.com/aws/aws-sigv4-auth-cassandra-java-driver-plugin.git</connection>
+ <developerConnection>scm:git:git@github.com:aws/aws-sigv4-auth-cassandra-java-driver-plugin.git</developerConnection>
+ <url>https://github.com/aws/aws-sigv4-auth-cassandra-java-driver-plugin</url>
+ </scm>
+
  <licenses>
  <license>
  <name>Apache License, Version 2.0</name>
@@ -75,12 +83,58 @@
  </compilerArgs>
  </configuration>
  </plugin>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-source-plugin</artifactId>
+ <version>2.2.1</version>
+ <executions>
+ <execution>
+ <id>attach-sources</id>
+ <goals>
+ <goal>jar-no-fork</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
  <plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-javadoc-plugin</artifactId>
  <version>3.1.1</version>
  <configuration>
  </configuration>
+ <executions>
+ <execution>
+ <id>attach-javadocs</id>
+ <goals>
+ <goal>jar</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-gpg-plugin</artifactId>
+ <version>1.6</version>
+ <executions>
+ <execution>
+ <id>sign-artifacts</id>
+ <phase>verify</phase>
+ <goals>
+ <goal>sign</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ <plugin>
+ <groupId>org.sonatype.plugins</groupId>
+ <artifactId>nexus-staging-maven-plugin</artifactId>
+ <version>1.6.8</version>
+ <extensions>true</extensions>
+ <configuration>
+ <serverId>sonatype-nexus-staging</serverId>
+ <nexusUrl>https://aws.oss.sonatype.org</nexusUrl>
+ <autoReleaseAfterClose>false</autoReleaseAfterClose>
+ </configuration>
  </plugin>
  <plugin>
  <groupId>org.codehaus.mojo</groupId>