Improve regex

Author: sebromero

scripts/validation/rules/rules-spelling.yml

@@ -7,7 +7,7 @@
     'MB'
 
 # Excludes Wi-Fi in URLs (prepended by dash or slash) and WiFi.XY and MKR WiFi
-- regex: "(?<![\\/-]|MKR |UNO |MKR 1000 )[wW]i[fF]i(?![-\\/]|\\.?\\S)"
+- regex: "(?<![\\/-]|Arduino |MKR |UNO |MKR 1000 )[wW]i[fF]i(?![-\\/]|\\.?\\S| [sS]hield)"
   shouldMatch: false
   type: warning
   format: markdown