added link to typescript implementation

README.md

@@ -13,6 +13,8 @@ erdi8 is a [unique identifier](https://www.wikidata.org/wiki/Q6545185) scheme an
 
 It is basically a base36 alphabet that intentionally avoids the ambiguous characters `[0, 1, and l]` and therefore shrinks to 33. In addition to that, it ensures that no identifier starts with a numeric value by using an offset of 8. The zero is represented by 'a', 25 is represented by 'a2', etc. With three characters or less one can create 28'075 (25 + 25 * 33 + 25 * 33 * 33) different identifiers. With 6 characters or less we have 1'008'959'350 options. In a traditional identifier world, one would use a prefix, e.g. M, and then an integer. This only gives you 100k identifiers (M0 to M99999) with up to 6 characters. The scheme enables consecutive counting and is therefore free of collisions. In particular, it is __not__ a method to create secret identifiers.
 
+A TypeScript implementation is available at [erdi8-ts](https://github.com/athalhammer/erdi8-ts).
+
 ## Usage