v0.2.55..v0.2.56 changeset CommandLineExamples.asciidoc

diff --git a/docs/user/CommandLineExamples.asciidoc b/docs/user/CommandLineExamples.asciidoc
index d3f2282..422fdac 100644
--- a/docs/user/CommandLineExamples.asciidoc
+++ b/docs/user/CommandLineExamples.asciidoc
@@ -433,6 +433,14 @@ See the User Guide for more details on command usage.
       input2.osm output.osm
 -----
 
+===== Preserve all values for a particular tag key during conflation:
+
+-----
+    # The value for myTagKey will consist of a semicolon delimited list of all the unique values 
+    # found when merging features together.
+    hoot conflate -D tag.merger.overwrite.accumulate.values.keys="myTagKey" input1.osm input2.osm
+-----
+
 ==== Applying Changes
 
 ===== Derive a changeset between two maps and write the result directly to an OSM API database: