Small mistyping fixes

doc/source/reference/index.rst

@@ -4,7 +4,7 @@
   Squirrel 3.1 Reference Manual
 #################################
 
-Copyrigth (c) 2003-2016 Alberto Demichelis
+Copyright (c) 2003-2016 Alberto Demichelis
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

doc/source/stdlib/index.rst

@@ -4,7 +4,7 @@
   Squirrel Standard Library 3.1
 #################################
 
-Copyrigth (c) 2003-2016 Alberto Demichelis
+Copyright (c) 2003-2016 Alberto Demichelis
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal