Update example code

README.md

@@ -215,7 +215,7 @@ bool generateAtlas(const char *fontFilename) {
             ImmediateAtlasGenerator<
                 float, // pixel type of buffer for individual glyphs depends on generator function
                 3, // number of atlas color channels
-                &msdfGenerator, // function to generate bitmaps for individual glyphs
+                msdfGenerator, // function to generate bitmaps for individual glyphs
                 BitmapAtlasStorage<byte, 3> // class that stores the atlas bitmap
                 // For example, a custom atlas storage class that stores it in VRAM can be used.
             > generator(width, height);