Completed docs, added icon

src/interner/display.rs

@@ -23,6 +23,7 @@ pub trait InternedDisplay {
     self.bundle(i).to_string()
   }
 
+  /// Combine with an interner to implement [Display]
   fn bundle<'a>(&'a self, interner: &'a Interner) -> DisplayBundle<'a, Self> {
     DisplayBundle { interner, data: self }
   }

src/interner/token.rs

@@ -13,12 +13,15 @@ pub struct Tok<T> {
   phantom_data: PhantomData<T>,
 }
 impl<T> Tok<T> {
+  /// Wrap an ID number into a token
   pub fn from_id(id: NonZeroU32) -> Self {
     Self { id, phantom_data: PhantomData }
   }
+  /// Take the ID number out of a token
   pub fn into_id(self) -> NonZeroU32 {
     self.id
   }
+  /// Cast into usize
   pub fn into_usize(self) -> usize {
     let zero: u32 = self.id.into();
     zero as usize