Fixed mobile changelog

app/partials/mobile/changelog_modal.html

@@ -24,7 +24,7 @@
         </h3>
         <div class="modal_section_body changelog_version_changes">
           <ul class="list-unstyled changelog_version_changes_list">
-            <li>- Link Previews:<br/>
+            <li>Link Previews:<br/>
             Get rich link summaries for tweets, YouTube videos, Instagram photos and other content.</li>
 
             <li>Check out <a href="https://telegram.org/blog/link-preview" target="_blank">Telegram Blog</a> for more info.</li>