update README

README.md

@@ -43,6 +43,13 @@ thanks to the built-in web server, it is displayed in a single HTML page.
 - Config file `conf/servers.json` prior run. You might find a sample file at
 `conf/servers.json.example`.
 - Please see [Config](#config) section for further details.
+- Set Environment variable DOWNLOAD_API_URL. You can download the complete
+status report in excel format and this download feature is implemented in API
+/download. If you are running your app in http://10.0.0.10:8080/monit,
+
+```
+DOWNLOAD_API_URL=http://10.0.0.10:8080/monit/download
+```
 
 ## Run
 

static/monit-dashboard.css

@@ -33,7 +33,7 @@ a {
 }
 
 button.accordion {
-    color: #444;
+    color: #FFF;
     cursor: pointer;
     padding: 18px;
     width: 100%;