adding concept_synonym info

closes #663

Author: clairblacketer

docs/cdm54.html

@@ -14278,10 +14278,17 @@ <h3 class="tabset tabset-pills">relationship</h3>
 <div id="concept_synonym" class="section level3 tabset tabset-pills">
 <h3 class="tabset tabset-pills">concept_synonym</h3>
 <p><strong>Table Description</strong></p>
-<p>The CONCEPT_SYNONYM table is used to store alternate names and
-descriptions for Concepts.</p>
+<p>The CONCEPT_SYNONYM table captures alternative terms, synonyms, and
+translations of Concept Name into various languages linked to specific
+concepts, providing users with a comprehensive view of how Concepts may
+be expressed or referenced.</p>
 <p><strong>User Guide</strong></p>
-<p>NA</p>
+<p>Users can leverage the CONCEPT_SYNONYM table to expand search
+capabilities and improve query accuracy by incorporating synonymous
+terms into data analysis and retrieval processes. Also, users can
+enhance their mapping efforts between local terminologies and
+standardized concepts by identifying synonymous terms associated with
+concepts in the CONCEPT_SYNONYM table.</p>
 <p><strong>ETL Conventions</strong></p>
 <p>NA</p>
 <table class="table table-condensed table-hover" style="font-size: 13px; margin-left: auto; margin-right: auto;">