Expand Javadoc for StringSubstitutor and friends.
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index b0b2a60..8d1527e 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -50,6 +50,8 @@
<action issue="TEXT-168" type="fix" dev="ggregory" due-to="luksan47">(doc) Fixed wrong value for Jaro-Winkler example #117</action>
<action issue="TEXT-169" type="add" dev="ggregory" due-to="Gary Gregory">Add helper factory method org.apache.commons.text.StringSubstitutor.createInterpolator().</action>
<action issue="TEXT-170" type="add" dev="ggregory" due-to="Gary Gregory">Add String lookup for host names and IP addresses (DnsStringLookup).</action>
+ <action type="update" dev="ggregory" due-to="Gary Gregory">Expand Javadoc for StringSubstitutor and friends.</action>
+
</release>
<release version="1.7" date="2019-06-30" description="Release 1.7">
