Chanage Wikipedia SGR link to have the proper fragment identifier. (#959)

Author: rosew0od

src/style/types/attribute.rs

@@ -22,7 +22,7 @@ macro_rules! Attribute {
         /// * Only UNIX and Windows 10 terminals do support text attributes.
         /// * Keep in mind that not all terminals support all attributes.
         /// * Crossterm implements almost all attributes listed in the
-        ///   [SGR parameters](https://en.wikipedia.org/wiki/ANSI_escape_code#SGR_parameters).
+        ///   [SGR parameters](https://en.wikipedia.org/wiki/ANSI_escape_code#Select_Graphic_Rendition_parameters).
         ///
         /// | Attribute | Windows | UNIX | Notes |
         /// | :-- | :--: | :--: | :-- |