Add note on custom character types

diff --git a/README.md b/README.md
index ce688fed3557e5ec97516d416ff803da60684ff4..aa99175f8969c54576652f3ba13a36cd4692353a 100644 (file)
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 * Convert any integral type to a string at compile-time
 * Supports converting to any base between 2 and 36 inclusive
 * No external dependencies, only includes `type_traits` for template parameter checking
+* Supports custom character types, e.g. `to_string<123, 10, wchar_t>`
 
 **How to use:**