Fix mods.toml; Move credits to the mods section

src/main/resources/META-INF/mods.toml

@@ -1,10 +1,11 @@
 modLoader="javafml" #mandatory
 loaderVersion="[31,)" #mandatory. 26 for 1.14.2, 27 for 1.14.3, 28 for 1.14.4. 29,30,31 for 1.15, 1.15.2/3
-credits="Thanks suppergerrie2 for this example!" #optional
+
 [[mods]] #mandatory
 modId="stutorialmod" #mandatory
 version="1.0" #mandatory
 displayName="Tutorial Mod" #mandatory
+credits="Thanks suppergerrie2 for this example!" #optional
 description='''
 A mod developed for suppergerrie2's tutorial
 '''