Fix typo in INTERPRETING.md

INTERPRETING.md

@@ -162,7 +162,7 @@ attribute is a YAML dictonary with two keys:
 
 - `phase` - the stage of the test interpretation process that the error is
   expected to be produced; either "parse" (meaning, "while parsing the source
-  text"), "early" (meaning, "prior to evaluation"), "resolution" (meaining,
+  text"), "early" (meaning, "prior to evaluation"), "resolution" (meaning,
   "during ES2015 module resolution"),  or "runtime" (meaning, "during
   evaluation")
 - `type` - the name of the constructor of the expected error