Save files as lower case

server/server.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"strings"
 
 	"github.com/PuerkitoBio/goquery"
 )
@@ -56,7 +57,7 @@ func main() {
 				return
 			}
 
-			err = ioutil.WriteFile(fmt.Sprintf("%s/%s.%s.json", path, mensa, day), content, 0644)
+			err = ioutil.WriteFile(fmt.Sprintf("%s/%s.%s.json", path, strings.ToLower(mensa), day), content, 0644)
 			if err != nil {
 				fmt.Println(err.Error())
 				return