update changelog

Author: fm4dd

html/changelog.shtm

@@ -20,9 +20,13 @@
   <div id="content">
     <h3>2024-01-13 new version 1.8.5 released</h3>
     <hr />
-        <h4>Bug fixes:</h4>
+    <h4>New functionality:</h4>
+    <ul>
+      <li>Support SM2 keys and SM3 hash algorithm (China State Cryptography Administration)</li>
+    </ul>
+    <h4>Bug fixes:</h4>
     <ul>
-	    <li>Code update to latest OpenSSL version 3 API calls</li>
+      <li>Code update to latest OpenSSL version 3 API calls</li>
     </ul>
 
     <h3>2021-12-20 new version 1.8.4 released</h3>