Update THANKS

THANKS

@@ -12,6 +12,7 @@
 6) Graham Hutton. A tutorial on the universality and expressiveness of fold. J. Functional Programming 9 (4): 355–372, July 1999. Cambridge University Press
 Online access: http://www.cs.nott.ac.uk/~pszgmh/fold.pdf
 Last visited: 14/07/2019.
+7) https://cloford.com/resources/charcodes/ (Більше підтримки для UTF-8).
 
 English Translation
 
@@ -29,3 +30,4 @@ So, there were used such literal sources:
 6) Graham Hutton. A tutorial on the universality and expressiveness of fold. J. Functional Programming 9 (4): 355–372, July 1999. Cambridge University Press
 Online access: http://www.cs.nott.ac.uk/~pszgmh/fold.pdf
 Last visited: 14/07/2019.
+7) https://cloford.com/resources/charcodes/ (UTF-8 more support).