Update index.html

Add support for humidity correction

code/html/index.html

@@ -948,6 +948,16 @@
                                     </div>
                                 </div>
 
+                                <div class="pure-g module module-temperature">
+                                    <label class="pure-u-1 pure-u-lg-1-4">Humidity correction</label>
+                                    <input name="humCorrection" class="pure-u-1 pure-u-lg-1-4" type="number" action="reboot" min="-100" step="0.1" max="100" tabindex="18" />
+                                    <div class="pure-u-0 pure-u-lg-1-2"></div>
+                                    <div class="pure-u-0 pure-u-lg-1-4"></div>
+                                    <div class="pure-u-1 pure-u-lg-3-4 hint">
+                                        Humidity correction value is added to the measured value which may be inaccurate due to many factors. The value can be negative.
+                                    </div>
+                                </div>
+
                                 <legend class="module module-hlw module-emon">Energy monitor</legend>
 
                                 <div class="pure-g module module-emon">