Add 2Mb speed to web interface list

Author: awawa-dev

wled00/data/settings_sync.htm

@@ -172,6 +172,7 @@ <h3>Serial</h3>
 <option value=9216>921600</option>
 <option value=10000>1000000</option>
 <option value=15000>1500000</option>
+<option value=20000>2000000</option>
 </select><br>
 <i>Keep at 115200 to use Improv. Some boards may not support high rates.</i>
 <hr>

wled00/html_settings.h

@@ -349,7 +349,8 @@ Press the pushlink button on the bridge, after that save this page!</b><br>
 </option><option value="2304">230400</option><option value="4608">460800
 </option><option value="5000">500000</option><option value="5760">576000
 </option><option value="9216">921600</option><option value="10000">1000000
-</option><option value="15000">1500000</option></select><br><i>
+</option><option value="15000">1500000</option><option value="20000">2000000
+</option></select><br><i>
 Keep at 115200 to use Improv. Some boards may not support high rates.</i><hr>
 <button type="button" onclick="B()">Back</button><button type="submit">Save
 </button></form></body></html>)=====";