changed spelling

Author: haimich

static/income.html

@@ -2,7 +2,7 @@
 <html>
   <head>
     <meta charset="UTF-8">
-    <title>Einkommentitle>
+    <title>Einnahmentitle>
 
     <link rel="stylesheet" href="../../../node_modules/bootstrap/dist/css/bootstrap.min.css">
     <link rel="stylesheet" href="../../../node_modules/font-awesome/css/font-awesome.min.css">