Update README.md

Author: Sulunia

README.md

@@ -9,6 +9,6 @@ You'll need to install the following libraries:
 
 To do so, install first love2d on your machine. Then, download all luafft files, navigate to love2d installation folder and paste
 luafft's "lua" folder on the root of love2d folder.
-After doing so, simply save fftvis.lua along with a song of your liking on any folder you want and set the Song variable using a
+After doing so, simply save main.lua along with a song of your liking on any folder you want and set the Song variable using a
 text editor to point at the music you want to play.
 Then, just drag and drop this folder to the love2d executable or desktop shortcut.