Fix copyright

Set actual copyright dates

Author: devatrun

LICENSE

@@ -1,7 +1,7 @@
 Licensed under the MIT License <http://opensource.org/licenses/MIT>.
 SPDX-License-Identifier: MIT
 
-Copyright (c) 2020 Yury Kalmykov <y_kalmykov@mail.ru>.
+Copyright (c) 2020-2021 Yury Kalmykov <y_kalmykov@mail.ru>.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -20,11 +20,11 @@ class long_int_t; // signed integer
 ```
 where native_t may be one of base unsigned type and size must by power of two.
 ## Implementation
-* [long_int.h](include/long_int.h) - long signed integer class
-* [long_uint.h](include/long_uint.h) - long unsigned integer class
-* [long_math.h](include/long_math.h) - crossplatform helper classes and functions
-* [long_math_gcc.h](include/long_math_gcc.h) - GCC, CLANG helper classes and functions
-* [long_math_msvc.h](include/long_math_msvc.h) - MSVC helper classes and functions
+* [long_int.h](include/slimcpplib/long_int.h) - long signed integer class
+* [long_uint.h](include/slimcpplib/long_uint.h) - long unsigned integer class
+* [long_math.h](include/slimcpplib/long_math.h) - crossplatform helper classes and functions
+* [long_math_gcc.h](include/slimcpplib/long_math_gcc.h) - GCC, CLANG helper classes and functions
+* [long_math_msvc.h](include/slimcpplib/long_math_msvc.h) - MSVC helper classes and functions
 ## Integration
 The library implements four predefined types: uint128_t, uint256_t, int128_t, int256_t. You can use them in you project by include code below:
 ```c++

include/slimcpplib/long_int.h

@@ -8,7 +8,7 @@
 // Licensed under the MIT License <http://opensource.org/licenses/MIT>.
 // SPDX-License-Identifier: MIT
 //
-// Copyright (c) 2020 Yury Kalmykov <y_kalmykov@mail.ru>.
+// Copyright (c) 2020-2021 Yury Kalmykov <y_kalmykov@mail.ru>.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal

include/slimcpplib/long_math.h

@@ -8,7 +8,7 @@
 // Licensed under the MIT License <http://opensource.org/licenses/MIT>.
 // SPDX-License-Identifier: MIT
 //
-// Copyright (c) 2020 Yury Kalmykov <y_kalmykov@mail.ru>.
+// Copyright (c) 2020-2021 Yury Kalmykov <y_kalmykov@mail.ru>.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal

include/slimcpplib/long_math_gcc.h

@@ -8,7 +8,7 @@
 // Licensed under the MIT License <http://opensource.org/licenses/MIT>.
 // SPDX-License-Identifier: MIT
 //
-// Copyright (c) 2020 Yury Kalmykov <y_kalmykov@mail.ru>.
+// Copyright (c) 2020-2021 Yury Kalmykov <y_kalmykov@mail.ru>.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal

include/slimcpplib/long_math_msvc.h

@@ -8,7 +8,7 @@
 // Licensed under the MIT License <http://opensource.org/licenses/MIT>.
 // SPDX-License-Identifier: MIT
 //
-// Copyright (c) 2020 Yury Kalmykov <y_kalmykov@mail.ru>.
+// Copyright (c) 2020-2021 Yury Kalmykov <y_kalmykov@mail.ru>.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal

include/slimcpplib/long_uint.h

@@ -8,7 +8,7 @@
 // Licensed under the MIT License <http://opensource.org/licenses/MIT>.
 // SPDX-License-Identifier: MIT
 //
-// Copyright (c) 2020 Yury Kalmykov <y_kalmykov@mail.ru>.
+// Copyright (c) 2020-2021 Yury Kalmykov <y_kalmykov@mail.ru>.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal