fix issue#303

Author: nathan gouy

lib/typed.js

@@ -267,7 +267,7 @@ return /******/ (function(modules) { // webpackBootstrap
 	          _this2.toggleBlinking(false);
 
 	          // We're done with this sentence!
-	          if (curStrPos === curString.length) {
+	          if (curStrPos >= curString.length) {
 	            _this2.doneTyping(curString, curStrPos);
 	          } else {
 	            _this2.keepTyping(curString, curStrPos, numChars);