fixed stupid copy/paste mistake

README.md

@@ -11,7 +11,7 @@ Usage
 -----
 
 ```
-Usage: ./learncrypt [options]
+Usage: bayernfahrplan [options]
 
  Options:
 -f             --file The file that the data is written to.

source/app.d

@@ -25,7 +25,7 @@ void main(string[] args)
 
     if (helpInformation.helpWanted)
     {
-        defaultGetoptPrinter("Usage: ./learncrypt [options]\n\n Options:", helpInformation.options);
+        defaultGetoptPrinter("Usage: bayernfahrplan [options]\n\n Options:", helpInformation.options);
         return;
     }