diff --git a/README.md b/README.md
index a34b0ba..33f2ef2 100644
--- a/README.md
+++ b/README.md
@@ -101,13 +101,12 @@ Sources:
 
 
 
-## Note on Postcode Validation
+## Postcode Verification
 
-Postcodes cannot be validated just with a regular expression. Proper postcode validation requires having a full list of postcodes to check against. Relying on a regex will produce false postives/negatives.
-
-A complete list of Postcodes can be obtained from the ONS Postcode Directory, which is updated every 3 months.
+Postcodes can only be validated using pattern matching, such as regular expressions. Accurate postcode verification would require having a full list of postcodes to check against.
 
+A complete list of Postcodes can be obtained from the [ONS Postcode Directory](https://en.wikipedia.org/wiki/ONS_Postcode_Directory), which is updated every 3 months.
 
 ## License
 
-Code released under [the MIT license](https://github.com/vasildakov/postcode/blob/master/LICENSE)
\ No newline at end of file
+Code released under [the MIT license](https://github.com/vasildakov/postcode/blob/master/LICENSE)