fix broken links in documentation

crates/servicepoint/src/cp437.rs

@@ -97,7 +97,7 @@ mod feature_cp437 {
     ///
     /// See <https://en.wikipedia.org/wiki/Code_page_437#Character_set>
     ///
-    /// Mostly copied from https://github.com/kip93/cp437-tools. License: GPL-3.0
+    /// Mostly copied from <https://github.com/kip93/cp437-tools>. License: GPL-3.0
     #[rustfmt::skip]
     pub const CP437_TO_UTF8: [char; 256] = [
         /* 0X */ '\0', '☺', '☻', '♥', '♦', '♣', '♠', '•', '◘', '○', '\n', '♂', '♀', '♪', '♫', '☼',

crates/servicepoint/src/primitive_grid.rs

@@ -147,6 +147,8 @@ impl<T: PrimitiveGridType> PrimitiveGrid<T> {
     /// let grid: BrightnessGrid = grid.map(Brightness::saturating_from);
     /// let command = Command::CharBrightness(Origin::ZERO, grid);
     /// ```
+    /// [Brightness]: [crate::Brightness]
+    /// [Command]: [crate::Command]
     pub fn map<TConverted, F>(&self, f: F) -> PrimitiveGrid<TConverted>
     where
         TConverted: PrimitiveGridType,