docs: update digest count

jeanlescure · jeanlescure · commit 01a8d4ad3177 · 2021-02-22T03:11:57.000-06:00
diff --git a/README.md b/README.md
@@ -30,7 +30,7 @@ module, depending on the chosen key digest.
 
 ## v2 New Features
 
-String Crypto v2 allows for 12 more key digests, for a total of 19:
+String Crypto v2 allows for 12 more key digests, for a total of 20:
 
 - blake2b512
 - blake2s256
