Add sharddivide export properties to sample property file

src/test/resources/properties/solrwayback_unittest.properties

@@ -91,6 +91,32 @@ url.normaliser=normal
 # Optional list of Solr-params. Format is key1=value1;key2=value2,...
 #solr.search.params=f.url_norm.qf=url
 
+#------- sharddivide export ------------------
+# Pre-SolrWayback 5.0, export always used standard Solr cursorMark for export.
+# Solr cursorMark issues some redundant requests that scales with the number of shards in a Solr setup.
+# sharddivide avoids redundant requests at the cost of SolrWayback memory overhead, speeding up export
+# for multi-shard setups.
+
+# Whether or not to use sharddivide. See subsequent properties when using 'auto'
+# Possible values: always, never, auto (default)
+solr.export.sharddivide.default=auto
+
+# When solr.export.sharddivide.default == auto, the backing Solr must have at least this number of shards
+# for sharddivide to be activated.
+# Default: 2
+solr.export.sharddivide.autolimit.shards.default=2
+
+# When solr.export.sharddivide.default == auto, the export query must have at least this number of hits
+# for sharddivide to be activated.
+# Default: 5000
+solr.export.sharddivide.autolimit.hits.default=5000
+
+# If sharddivide is used, SolrWayback will issue at most this number of concurrent requests to shards.
+# Default: 20
+solr.export.sharddivide.concurrent.max=20
+
+#-------------------------------------------------------
+
 #------- Generate preview screenshots ------------------
 #Used for preview screenshots shown on the page resources overview. Is not required. 
 #Chrome must be installed on the OS and headless chrome is used to generate the screenshots.