Fixed typo in README.md

SilverFire · web-flow · commit f8490447dd92 · 2016-07-11T14:04:16.000+03:00
diff --git a/README.md b/README.md
@@ -46,4 +46,4 @@ python test.py
 DEBUGGING
 =========
 Debug EMT, use debug.php
-This script will show all the rules tat were used, for selected text and show step by step log.
+This script will show all the rules that were used, for selected text and show step by step log.
