Update docs/sketch-specification.md

Co-authored-by: per1234 <[email protected]>

Author: MatteoPologruto

docs/sketch-specification.md

@@ -9,7 +9,7 @@ The sketch root folder name and code file names must start with a basic letter (
 [<sup>1</sup>](#leading-number-note), or underscore (`_`) [<sup>2</sup>](#leading-underscore-note) followed by basic
 letters, numbers, underscores, dots (`.`) and dashes (`-`). The maximum length is 63 characters. The sketch name cannot
 end with a dot (`.`) and cannot be a
-[reserved name](https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions).
+[reserved name](https://learn.microsoft.com/windows/win32/fileio/naming-a-file#naming-conventions).
 
 <a id="leading-number-note"></a> <sup>1</sup> Supported from Arduino IDE 1.8.4. <br />
 <a id="leading-underscore-note"></a> <sup>2</sup> Supported in all versions except Arduino IDE 2.0.4/Arduino CLI