fix Gandalf phone number - valid phone numbers cannot start with 1. (#…

…3061)

Co-authored-by: Mike DaCosta <mikedacosta@google.com>

dlp/README.md

@@ -72,7 +72,7 @@ Optional flags are explained in [this resource](https://cloud.google.com/dlp/doc
     ```$xslt
     Name,TelephoneNumber,Mystery,Age,Gender
     James,(567) 890-1234,8291 3627 8250 1234,19,Male
-    Gandalf,(123) 456-7890,4231 5555 6781 9876,27,Male
+    Gandalf,(223) 456-7890,4231 5555 6781 9876,27,Male
     Dumbledore,(313) 337-1337,6291 8765 1095 7629,27,Male
     Joe,(452) 123-1234,3782 2288 1166 3030,35,Male
     Marie,(452) 123-1234,8291 3627 8250 1234,35,Female