DOC: minor updates in comments and README

MMM-covid19.js

@@ -94,7 +94,7 @@ Module.register("MMM-covid19", {
 	},
 
 	update_data: function() {
-		// get and parse json data from source 
+		// get and parse json data from source
 		var xmlHttp = new XMLHttpRequest();
 		xmlHttp.open( "GET", this.config.data_url, false ); // false for synchronous request
 		xmlHttp.send( null );
@@ -107,10 +107,10 @@ Module.register("MMM-covid19", {
 		this.cases.death = data[this.config.region]["tot"];
 		this.cases.cured = data[this.config.region]["gesund"];
 		this.cases.ts = data[this.config.region]["date"];
-	
+
 		// determine trend:
 		// calc this and last weeks cases and substract
-		// results the different of new cases between this and last week
+		// result is the difference of new cases between this and last week
 		// +10: red (arrow up)
 		//  +0: orange (arrow up)
 		//   0: normal (arrow right)

README.md

@@ -20,7 +20,6 @@ modules: [
                 position: "top_left",
                 config: {
                         // The config property is optional.
-                        // If no config is set, an example calendar is shown.
                         // See 'Configuration options' for more information.
                 }
         }