Update README.md

README.md

@@ -10,7 +10,7 @@
   * [x] Parser: parses all examples from WebAssembly Core TestsSuit (including folded instructions parsing)
   * [x] Renaming Phase: substitute identifiers with correct indexes, expand all implicit type declarations)
   * [x] Binary format parser/serializer
-  * [x] Verification Phase: execute a verification procedure from the Spec
+  * [x] Validation Phase: execute a verification procedure from the Spec
 
 ## Todo
   * [ ] Improve error messages for text representation parsing