Suggested change to documentation

[smclinden]

In https://github.com/TheHive-Project/TheHiveDocs/blob/master/TheHive4/Installation/Install_deb.md#configuration-the-hadoop-master the documentation includes the following sample for core-site.xml:

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
  <property>
    <name>fs.defaultFS</name>
    <value>hdfs://thehive1:10000</value>
  </property>
  <property>
    <name>hadoop.tmp.dir</name>
    <value>/opt/thp_data/hdfs/temp</value>
  </property>
  <property>
    <name>dfs.client.block.write.replace-datanode-on-failure.best-effort</name>
    <value>true</value>
  </property>
</configuration>

It might be better to change thehive1 to localhost for clarity in the event that the user decides to cut-and-paste this without modification.